Well since we're necro rezzing threads... and the answer has changed since this was originally asked. Current Answer, pound for pound: Rogue Check back in 6 weeks for a potentially new and different answer!
All depends on the guild total dps. IF you smash/burn everything in 2min or less rogue is best probably with wizards in combined, if you lack dps helpers, numbers or people slack in raid, generally speaking have low total guild dps , lots of classes can be better than rogues.
If the answer was wizard she would have just said its wizard. When its rogue its well rogues kinda but only when this this and this come into play regardless of if this, this and this pretty much always do.
