Some thoughts:
Everyone is, of course, entitled to his/her own opinion, however, you haven't seen what Nolan has planned for these characters yet. So i don't really get the, 'figure' dilemma, or the 'acting skills' dilemma. These are all mold-able qualities that will come together when the director directs the movie. What I feel a lot of you are doing is, in essence, just like standing over an artist as he/she paints. And as the painter grabs a brush to create an image, you say, "oh, damn. wrong brush. This will never turn out." But you have no idea how the artist intends to use the brush/tool/paint to create the image. Just let it happen. You can critique the hell out of the end result. That's fine. That's wanted. But let the director make his damn movie.
I am excited for how the characters will be portrayed. I loved scarecrow the best in the series so far.
Incidentally, a few artists jammed out with a Nolan themed batman rogues gallery yearsssss ago. Trying to think of a more gritty way to display batman villains. It was really awesome sauce jamming. I wish i would've saved all the art. Here's my version of clayface, someone i'd lovvvvvvve (<3) to see on the big screen.
The write up for him was something like, 'he's blind, and uses clay feelers to reach out and 'feel'. His head is like a potato sack filled with clay that can morph 'roughly' to display emotions and such. He has no lost daughter he needs to care for. No wife that left him because he's a monster. No sappy backstory. He's just a clay man creepin around gotham killing people and he's really chaotic! Neat! =P