George Clooney was pretty bad but I blame Joel Schumacher and his inabilty to direct as the fault. To be honest Joel makes a similiar mistake that the Ceej brought up about Clooney's portrayel. Tim Burton pretty much established what the Batman movies should be like and though Tim had quite a bit of humor in the films, it never felt too campy or out of place. Joel sorta tried to meld what Tim did with the old 60's sitcom to disasterous results. I demand new Batman films with Two Face and Mr. Freeze portrayed in a darker and grimer setting (Batman the Animated Series FTW!)
On topic, I hate Val Kilmer (he's pretty and emo) and George was pretty bad as well...
Adam West should not even count cause the 60's sitcom is an entity of itself and should not be compared to the movies or original source material. It's cheese makes it golden...
