Level 20 PvP: This was kind of hard to do as I do not know where you placed your 11 talents points, although not allot of points they can make a difference. The greatest factor that will give you an advantage in WOW PvP is having no fear. If you are like me, then the very first time you are solo in a PvP area and see a target, your heart will beat faster, your blood pressure will rise and after the battle you will notice your palms are sweaty. This may sound like I am overdoing it, but this is how I am. I am EXTREMELY competitive, I play to win and failure is simply not an option. LOL, I blame my "blood lust" on the military, having served for 4 years in the U.S. Army in a combat MOS.

Before we begin, lets list some don'ts in PvP:

Don't:
Have fear - It will make you do the wrong things like, clicking the wrong hotbar key, running, clicking and dragging a hotbar skill instead of using it. This may sound stupid but if you are a noob and you have never PvP'ed before, the first thing you should do is go up to an enemy player and let him kill you, don't even swing or cast a spell, you really need to get this "first death" out of the way.
Run - If you PvP with any intelligence, then YOU will select when and where you PvP, WOW is extremely simple, if you are in a contested area or enemy area then you have chosen to PvP. Since you have chosen when and where you started PvP, why run? Unless you are facing an enemy many levels above you or a group of enemy players, keep fighting.
Waste your points - Never put a single talent point in ANY skill that will not be effective in PvP. Any skill that has "reduces threat level" in its description is a waste of points, as this does not work in PvP.
Grief your kills - Instead of spending time sending tells, dancing, flipping off, and flirting with your kills, why not kill another? The whole objective of PvP to some peeps is to show off their UbAh L33t 5k1llz, so by the time you grief your 1 kill so he remembers you for how you PwnEd him, I already killed 2 others. You want to see your name on the boards? You want players to tremble in fear when they see your name in their target box? Then kill and immediately move on to others.
Stop moving - Never stay in one place for more then 1-2 kills, after you kill a player ASSUME that within 5-10 seconds every enemy player in the zone will know where you are. The player that you just killed will say your location in general chat.
Be seen - Unless you want to be seen, same reason as stated above, your position will be announced to the whole zone. Stay off of roads, away from building, and away from NPC's
Kill Lobies - This is a waste of your time and energy. If you are a lvl 60 and u see a level 30, don't even waste your time as you do not need a "speed bump" to slow down your PvP enjoyment, of course if he sees you then you have no choice but to kill him as he just advertised your location.
Come unprepared - Have full buffs already on and make sure you have at least 5 of each mana/health potion that are the correct strength for your level.


Here are some general tips based upon class and situation:(remember tips are based assuming you already have your buffs on)

Mage:

Solo: facing a target - no surprise. Frostbolt - fireball, keep repeating fireball until in range of Fireblast, then arcane missile, then frost nova, move away and fireball, Fireblast. If you are facing a caster the do not waste mana and time on Frostbolt as they will try to start casting right away, simply fireball and repeat until within range of Fireblast or arcane missiles. Hopefully you already have mana shield(if facing melee) or dampen magic(if facing caster) casted on yourself.

Solo: coming from behind, have element of surprise. Before engaging, cast your mana shield(if facing melee) or dampen magic(if facing caster) move to within range of Flamestrike, cast it then follow steps listed above.

Group: Your primary mission here is to eliminate the enemy healer FIRST, after healer drops take out enemy casters. If any melee close to within range of your healer/caster pop a frost nova.

Priest:

Solo: facing a target - no surprise. Mindblast(get that damn 8 second timer starting to countdown) Shadow word pain,(get that DOT working) then Holy Smite till within melee. After you take 2-3 melee hits, cast power word shield followed by insta casted renew. At this point your Mindblast should be cooled cast it, then shadow word pain again.(Remember Shadow Word Pain is an insta cast, so you can cast this "on the move", so you should be moving backwards away from target when casting this spell unless already in melee range)

Solo: coming from behind - have element of surprise. Same as above EXCEPT, cast 1 Holy smite first - why? because Holy Smite takes time to cast and since you have the element of surprise the first spell is free :) Make sure that the Mindblast is casted first as that 8 second cool down really hurts, 8 seconds is a very long time in PvP..(Remember Shadow Word Pain is an insta cast, so you can cast this "on the move", so you should be moving backwards away from target when casting Shadow Word Pain, unless already in melee range)


Group: HIDE! - When in PvP, as a priest, always follow the largest character,(I love Taurens :) YOU WILL BE the first target to die unless the enemy group is "noobed" - the VERY FIRST party member to take damage you should insta cast renew on because, it is a HOT,(Heal Over Time) spell and your most efficient as far as "healing to mana point". You will need to cast Power Word shield on a member that is taking heavy damage, but keep in mind that this not only has a 4 second cooldown, but also is a mana burner.(You did bring your mana potion right?) At this point you will need to heal based on situation, keep in mind that renew is over time so only cast it at the start of combat as by this time you will be needing to use your regular heals, as the battle is well under way. You must be aware of your surroundings, you cannot allow a rogue to get the jump on you from stealth, if this happens pop that Power Word Shield and renew yourself, hopefully a party member with a root or slow effect will know their role and use it on the rouge...

Rouge:

Solo: facing a target - no surprise. Run!, the rogue's skills are based around the use of stealth and therefore if your target already sees you, you are already at a disadvantage. What are you doing in PvP unstealthed? LOL.

Solo: Stealthed Behind Target - have element of surprise. Crippling poison should already be on your main hand weapon. Ambush, Sinister strike,(why sinister strike instead of gouge here? because in order for you to gouge the target must be facing you, instead of Ambush and moving to get him to face you, let him turn around while you use Sinister Strike, at this point you will be out of energy, melee a whack or 2 and Gouge. After Gouge go behind the target and face his back, the talent skill to improve the time Gouged by 1.5 secs is almost a "must have or die" skill for all rouges regardless of which talent tree you took. Wait a few secs here, gouge will last 4 secs and if you took the talent it will last 5.5 seconds. Why wait? because your energy will build up over these 5 seconds. Backstab, Sinister Strike and Eviscerate with the 5 points built up.(If facing a caster NEVER drain all your energy as you will need "kick", it only costs 25 energy so it should be easy to keep 25 energy in reserve) So order is, Ambush, Sinister Strike, melee 1-2, Gouge, wait... Backstab, Sinister Strike, Eviscerate

Group: You are solely responsible for taking out the healer, all other targets are meaningless in the initial 3-5 seconds of PvP. You have SAP use it! Use it on a caster though, because if your party is experienced in PvP they will all be trying to kill the healer first and you sap will be wasted on the healer. First move on the healer is Kick regardless of what the healer is doing, if he is experienced he will be healing. After kick, Gouge him and STOP! wait for 3 secs, then backstab him. You could keep attacking him but this will break the stun and allow him to cast... After the healer drops, the rest of the enemy group will fall rather quickly, unless your healer is dead as well. Your next target after the healer is a Mage/caster again use kick...(and make sure you got that poison on your weapon!)

Hunter:

Solo: facing target - no surprise. Hunters mark as this has a range of 100 and can be casted before either of you are in range to attack. Send you pet! (pet of choice in solo PvP is a "caster pet" as most peeps after they lose their noobness will know to ignore the pet and kill the hunter) Now you would Concussion, Serpent Sting, Arcane Shot and MOVE! (you may set an immolation trap first, if the enemy is silly enough to run into it) If facing a caster then move out of his range until he switches to target your pet then move within range and repeat steps listed above. If the caster chases you then turn around to face him and walk backwards, because you can use all your shots while moving.(They are all insta casts) then turn around and run some more. If facing a melee Keep shooting until he moves with in melee then Wingclip, and run to max range and engage again.

Solo: coming from behind target - element of surprise. DO NOT hit Hunters mark right away, as this is a big warning to the enemy that a hunter is about to attack! Instead send your pet, if "melee pet" wait until it is 10 yards from target, if caster pet then wait until you hear the pet finish casting it's spell, now Hunters mark and continue attacking as described above.

Group: You have a very big responsibility here, whatever target you choose and cast Hunter's mark on, will be the target most of your party should attack.(Orc must SMASHY target with big red mark on it!!! LOL) Hopefully you targeted the healer, send pet against targeted healer and take it down. Next on the list should be casters, you must never forget that you can use all of your skills while "on the move" so there is no reason why you should die, unless your whole party is getting wiped. The pet of choice in group PvP is a "tank class" as allot of people in group PvP(even after they leave their noobness) still attack pets for some dumb unknown reason. Until this changes, use a "tank pet" if however, you are finding that your pet is being completely ignored in group PvP(as it should be) then switch to a "caster pet"

Warrior:

Solo: facing target - no surprise. I really have a problem here as I simply have not seen effective Warriors in solo PvP at this level, maybe they will come into power at later levels. This also greatly depends if you went 2 handed, dual wielding, or melee/shield as well as what stance you are in. I will attempt to explain a melee/shield and how you are "suppose" to do it. When starting to close with target Inner Rage, first hit you should do is Disarm if facing melee or Shield Bash if facing caster. Blood rage is an option, although this will greatly depend on what kind of target you are facing and how much health you have already lost, in general though if facing a melee, use it. Next Rend, then Heroic Strike.( Try to keep some rage here for your next shield bash) keep Rend/Heroic/Shield bash, until dead.(NOTE: only use Rend again after it is no longer in effect on the target.) You must also consider Shield Block if facing melee.

Solo: coming from behind - have element of surprise. Inner rage, Charge, Disarm(if facing melee)/Shield Bash(if facing caster). Since you got the jump on the target almost always use Blood rage here, Rend and Heroic Strike. Repeat Rend/Heroic Strike/Shield b