I've just started Act 3, and the Dark Knight's voice has definitely grown on me. I actually LIKE it, now. I'm not sure whether it's that I've gotten used to it, or that the voice actor recorded the dialogue in the order it appears in game and so got used to the part, but it really works. (And yes, like many others, I was extremely disappointed with it in the early parts of Act 1.)
-F.
