No One Lives. Nuff said about him for Batman.
Didn't see it. Do you mean that movie confirms that he'd make a good Batman or a terrible one?
Damn man, this is so hard. Peyton Manning for Batman.
90 percent of these suggestions over the last month or so are all terrible actors or average at best.
I don't know why we're all suddenly going back to the mid 30s range. I still believe it's a 40 something grizzled Batman. For me, it's Josh Brolin or Jon Hamm. Mainly Brolin. I don't really see anybody else taking the role or me getting excited otherwise.

What exactly told you that Keaton could play someone with a high IQ ? Was it Beetlejuice or Mr. Mom?
Keaton has no regional accent and clearly could pull off the aloof billionaire intellectual angle just from watching his real life persona... plus who says i think Keaton was the definitive Bruce anyway. (hint-> my username)
Doesn't matter. Bale's Wayne wasn't hands on in most of the scientific legwork and was mostly used in the playboy persona. I'm not a Brolin supporter but I don't buy your argument . Was Brolin unintelligent in Milk?
Actually, that was my biggest gripe with the Nolan trilogy. I just never got the sense that Bruce Wayne/Batman was a brilliant detective or strategist, and am really hoping that they play up that aspect a bit more this time around.
Ok I've officially heard it all now!
http://m.cinemablend.com/new/Hear-Me-Out-George-Clooney-Should-Next-Batman-Again-38719.html
I'd like that as well but we don't know which way Snyder is going with this.
Clooney comes back as Batman with O'Donnell as Nightwing with a cameo by LL Cool J as Cyborg asking Nightwing to come help with a mission, but he has to turn him down in order to help Batman take down Superman...
If they have Luthor in this movie, then I really hope they go with detective/strategist Bruce. To have otherwise would just be painful to watch.