I'd never heard of Dr Impossible. Agreed on Killer Moth, but I really think the Batman of crime should be Catman. I think Taskmaster is a bit overused. I think his appearances should be short bursts- doing his job and escaping.
Wonder Woman is the New 52 character I like most. I love nearly everything about the book- the exception being the thing where she takes her bracelets off and becomes uber-powerful. Now she's the goddess of war! Love it! Gets around that whole "emissary of peace" thing beautifully. :)