kilmers batman was like an 80% change from what keaton did in the role, which is why i dont really count them as sequels. keaton like hardly ever talked at all, especially in Returns. the most i ever heard keatons batman talk was in B89 when he was explaining the jokers forumla or whatever. other then that, he was VERY straghtfoward and didnt beat around the bush at all. when he sees gordon in Returns, he just says "w'ell see", and that is IT. didnt even look at him. then, kilmer was just talkin up a storm, throwin corny quips like "tryin to get under my cape" and "ive never had much luck with women", LOL. just, no. keaton would NEVER have degraded himself to such stinky writing, which is why he left so soon.
anyway, worst line? i always hated when jimk carrey went "judges?...EEEEEEEEEHHH!" and i personally always hated his "who IS bat muuun" in that stupid campy voice, ugh.
however, for funniest line i would choose "caffiene el' KILL YA!!!" lol always gets me. he was funny when he was freakin out with stickly and is like "hadbmscriminim aasksblahsha!!" LOL.