Don't know if this was brought up already (I'm not reading the last 40 pages), but two small things I liked that most might just not pay attention to...
1. Batman and Catwoman fighting on the rooftop and Batman knocks the gun out of her hand then says, "No guns, no killing". I just really like that he stated it so firmly to her.
2. When Bruce was trying out the knee brace, his backwards/sideways kick where he breaks the brick wall was like a total 1 for 1 shot of him doing that to the tree trunk in Year One.
I agree, that was one of my favorite lines from batman in this movie. So blunt, very much batman.