[4e] Most powerful class?

[tcrudisi]

What do you think the most powerful class in 4e is? Why?

From my experience playing and running a game, I think it is the Fighter. They put out the same damage as a Striker but have an incredibly high AC.

[Oracle_Hunter]

This is not really the proper question.

To begin with, Fighters are not Strikers. Sneak Attack Damage, Quarry Damage, and so on quickly outpaces pure Weapon Damage - particularly if you don't have multi-attacks. The easiest way to see this is to note that a 1st level Dagger Rogue can do 1d4+2d6+CHA+DEX all day, while the Maul Fighter does 2d6+STR all day. Sure the Maul Fighter has some 4d6 and even 6d6 powers, but those are 1/EN or 1/DA - not the primary attack of the class.

Secondly, best at what? Strikers are best at dealing damage but not survivability; Defenders are great at surviving but not the best at dealing damage; Leaders don't deal a lot of damage nor do they survive well on their own, but they can seriously cripple enemies and buff their allies; Controllers cripple enemies well and do good burst damage, but not much else.

EDIT:
There was a thread discussing "best at roles" here, if you'd like to look it over.