I dont believe Christian Bale versions should even be in the same category. The version Bale plays is EXACTLY the way Darkhorse Comics designed Batman. Theres no doubt in my mind he plays not only the best Batman, but the versions he is in are a True fan of this Comics dream.
However out of the other 4 I felt that Michael Keaton owned the Roll of Bruce Wayne. Clooney was a joke, Kilmer was more of a glamor run, and I dont even have an opinion on West.