Warriors

The Warrior class is considered to be the best raid boss tank in the game. We won't know if that changes in Wrath of the Lich King until it's released and all of the content has been tested. One thing we do know is they will continue to fill a commanding presence in the tanking role because that's what they were originally designed to do. Blizzard has slowly given Warriors the ability to do DPS as World of Warcraft matures and players tell the programmers what they would like to see in the game.

Probably one of the most memorable changes to ever happen in this game for Warriors will be Titan's Grip and the ability to dual wield 2handed weapons, if it's not the most memorable, it will definitely be the most talked about.

Pros

Able to use all armor and weapons except wands. Come with some of the highest hit points in the game making them able to survive tough situations. They have a wide variety of melee combat skills. They have 3 different stances that allow them to excel in different aspects of the game. They can taunt enemies off allies, pulling immediate aggro.

Cons

They don't get to heal themselves (unless you're Draenei). They have no long distance capability and they have a limited amount of buffs they can share with the group.