No. That would be the druid.
Followed by the cleric.
And the wizard never made the fighter useless in 3.x. Anyone who thinks that has never seen a competently designed fighter or compared him to a wizard who tries to deal damage. In Age of Worms our archer (with no prestige classes--BTW, just Ranger 2/Fighter 12) very reliably deals 90-120 points of damage per round to everything we face--and that's with decidedly suboptimal equipment choices (no boots of speed, for instance). Our wizard--with two or three prestige classes can only come close to that with a maxmized disintegrate... if the monster rolls a 1 on his saving throw. And that's been pretty typical of play at all levels in all the campaigns and in all of the rounds of Living Greyhawk or Living Arcanis I've judged, or played. Melee fighters are a little less reliable than archers but also dish out more single target damage than your typical wizard.
Wizards have a very definite place in the 3.x party, but the only times I've seen them hog the limelight is when they are played by a player who is simply far better at choosing his actions than the other players.
As to the last part, I haven't seen a real 4.0 wizard. Every time I look at the playtest characters, I have to remind myself that very very few of the 3.x delve or fastplay characters that I saw WotC pass out at cons even hinted at what could be done with their classes. And we haven't seen any ritual rules. But, if, as seems likely, the 4th edition wizard does the same xdy+prime stat modifier damage as everyone else as a standard action at [1/2 char level+prime stat bonus+implement/weapon] attack bonus just like everyone else--with maybe a push/pull or immobilization effect (again, like everyone else), then yes, I prefer the 3.x wizard warts and all.