I usually like the "battle scars" as a little realistic touch, (Batman's just a dude after all) but exclusively drawing them on the upper body and only as whip marks makes him look less like a seasoned crime fighter and more like a really freaky BDSM devotee. Which, come to think of it, is not that far off.
In other news, I love Heckling Hobo Aquaman. There should be a talking action figure.