Yeah, I've been in these discussions before. It's clear that I just don't get whatever Keaton's appeal was, and nobody ever really sells their PoV that well.
I understand Keaton's appeal more than I understand the ones who hold up Jack Nicolson as "the best joker ever". That I will never understand.
At least with Keaton you got somebody who played the flippant Bruce Wayne well. You got somebody who portrayed someone a little...off. A little strange and obsessed. Which you don't really get from Bale. With Bale you get a Bruce Wayne who is "driven". There's always a method to his madness, not just plain ol' madness.
Which is interesting to me considering how well he played his role in American Psycho.