This voice has been such a turn-off for me since it was first used in Batman Begins and progressively got worse as it went on in the Dark Knight. I understand the concealing your identity but it went too far. He could've just made his voice more stern instead of talking from his throat. I mean that's what he did in the more earlier scenes of BB when he first had the Batsuit on. However, like many Batman fans, I gave many passes towards these movies because these are only ones that were actually attempting to give Batman and justice.
If I'd had my way, the Batman voice would be changed, the Batmobile wouldn't be more sleek, Joker's makeup would be a bit cleaner, Joker would played by a much better actor and Katie Holmes would've never gotten a chance to step foot on the filming location for the first movie.
(I'm sure there are some who are glad I didn't have my way and I'll agree to disagree with them.)