Kimota
ROY DU NORD!!!
man this discussion is kinda pointless since most of the popular versions of Batman aren't that expressive anyway, Pattinson can be an ok Batman regardless of his range or no-range
It'll all depend on the direction and idk if Matt Reeves is the guy you want to get this garbage truck on fire back on the right track, that's the real worry
The acting skills it's not that important in certain situations esp. regarding super-heroes to me. Cause leading men and character actors do not fill the same need. For a leading men in adventure/action movies, the important thing is charisma, likeability, charm(and good looks helps too). George Clooney in his best days was not the man with enormous range but you couldn't take your eyes off him, you hire someone like that to lead your movie, especially in that style. A caper like Ocean's 11 was just perfect(he was wrong for Batman though).
Like you said really maybe Batman doesn't have to be a big acting tour de force depending of the style you want to carry through. The important element though is his ability to be convincing at being a dangerous, scary guy that can take anybody out. I don't see it with Pattinson.