I actually prefer my warrior-types to be able to do more than "I hit it with my sword."
Level one:
Wizard: I put them to sleep, or shock their butt.
Cleric: I keep the undead away, and my friends alive.
Druid: I flank with my puppy and buffed quarterstaff.
Fighter: I hit it with my sword.
Level five:
Wizard: I make them go boom, or sow confusion with fog spells.
Cleric: I make everyone invincible, or make them go boom.
Druid: I also make them go boom, or turn into a wolf and bite them.
Fighter: I hit it with my sword.
Level ten:
Wizard: I summon demons and sow even greater chaos in the fight.
Cleric: I summon angels and blast and tank and crush and kill and destroy.
Druid: I summon monstars and blast and tank and crush and kill and destroy.
Fighter: I hit it with my sword. Twice.
Level twenty:
Wizard: I treat the battlefield like it's my personal chessboard, my "teammates" simple pawns, knights, and bishops, letting those mere mortals have their little victory by doing all the hard work.
Cleric: I call down the might of my god to eradicate everyone who looks at me sideways, then create new planes of existence for us to rest and relax after the fight.
Druid: I wildshape into a twenty-foot tall humanoid tornado and change the weather to rain acid and drop lightning and send armies of barkskin-buffed awakened dire polar bears.
Fighter: I hit it with my sword. Four times. Anytime I try to do anything more than this, I'm thwapped with the "broken/overpowered/powergamer/munchkin" stick. Pointing at what my teammates are doing doesn't seem to matter for some odd reason.