Begins is on AMC right now like Batman '89 and Dark Knight a few weeks ago.
Bale's Batman voice is pretty much pitch perfect as I watch it. He never goes over the top and gets the right tone. For the interpretation, I'd say it's on par with Keaton and Conroy for what it is. The scenes with Gordon and Dawes are particularly well done, it's like Bale was channeling those two (Conroy and Keaton) but with his own twist, even right down to the whispers.
Whoever was in charge of the obnoxious change in the later two made a serious mistake. I just don't get it. It doesn't sound like he's in control, it sounds like he can't breathe and is struggling to express himself. I find it hard to believe that Bale would just go in that direction on his own based on his great screen test and performance in Begins. Makes no sense to me. The fact that they didn't take the criticisms it received and made it even worse and over the top in TDKR is just baffling.
As for Bane, initially I was with everyone else with the first two screenings of TDKR, I couldn't understand a damn word he was saying and was getting frustrated by it like I was with the prologue. When Nolan came out and said it "doesn't really matter what he says" infuriated me. At the time, even Gordon was mumbling like the "shackles" speech when he was sitting down in front of the TV. I remember on my second viewing I was all ears at that exact scene just to hear it and it still came out like gibberish.
Then people translated Bane with the Magnus Rex script and it was all understandable, even that nonsense during the first fight with Batmab an the pit scene. Now when I see those scenes, I know what he's saying but the voice just irritates the hell out of me. There's his speech outside Blackgate that is particularly cringeworthy. He sounds like and old, elderly chap struggling to tell everyone that his diaper needs changed through and oxygen mask. "To my shame, build a lie around this fallen idol", please just ****.