Oh, boy. I'm gonna take some *major* flak on this one, but here goes:
Sean Penn (I think he's vastly over-rated. Sorry.)
Nick Nolte (All he does is Variations in Yelling.)
Al Pacino (See Nick Nolte - he was still good up until about "Sea of Love," then the Yelling began.)
Matt Dillon (He has one expression: Mad.)
Gary Oldman (He was great, then he let himself get typecast and just phoned it in for his next, like, 10 films. He's started to redeem himself with "Batman Begins," though.)
Daniel Day-Lewis (Ducking. I just don't get what's so great about him. The *only* movie I've ever seen him in where I couldn't see him acting was "In the Name of the Father.")
Sarah Jessica Parker (I can't stand her shrillness.)
Ben Affleck (The only one I could ever stand him in was "Shakespeare in Love," and that's because he played the perfect horse's ass - I'm thinkin' it wasn't much of a stretch.)
George Clooney (I'm sick to FREAKIN' death of him. And could he be any more of a shameless narcissist? Never have I seen someone so painfully infatuated with himself.)
Now... Lemme take off the gloves...