Technically speaking, Keaton & Clooney should have been the best, since they have the most serious acting chops. For that matter, so does Val Kilmer, although that's slightly more arguable. Nonetheless, my opinion is... BEST: Keaton ; WORST: Bale . He takes himself WAAAAY too seriously and approaches the role with no sense of humor whatsoever. When it comes to Batman films, nothing will ever top the films of the Burton/Keaton era. But as others have said, the directors are more to blame for that than the actors.