What are the Classes FOR?

[acidjax]

PRIEST: main healer/debuffer.

I think Priests were also intended to be damage dealers. With shadow talents (damage/agro reduction) they can do some mean damage with just a mana efficient Mind Flay and Shadow Word: Pain. Due to the lack of healers and the abundance of classes that can do damage "well enough", shadow priests tend to be ostracized from dungeon raids. Priests have the ability to heal and people might have trouble accepting them as damage dealers when more healing is what is really needed.

ROGUE: pure DPS Monkey.

I think that Rogues were also intended to have some group utility beyond damage. They excel at stuns and disorientations, having numerous on different diminishing returns timers. Most likely due to raid encounter balance, the majority of mobs are immune.

HUNTER: ...DPS?

In my mind, the Hunter is a low-maintenance damage dealer. Monster AoE skills tend to be primarily point blank and the Hunter is usually fighting out of their range. The Hunter also has Feign Death that works fairly well (so long as it's used before the mobs get to melee range). They can "get away" with a ton of damage without ever getting aggro.

As far as pulling goes, they can be extremely good at it. No other class can consistantly pull a mob with so little damage. A Hunter can use rank 1 Arcane Shot to instantly shoot a mob for 13 damage from up to 41yds away. The Hunter also has Feign Death and Distracting Shot to change his spot on the hate list, depending on what is desired.