The Defenestrator: A large, burly man in a denim jacket, black sunglasses, with black hair who obsessively carries around a window through which he forcefully throws criminals and the occasional unlucky policeman. His assaults on police officers landed him in Arkham Asylum.
I still think that the most awesome idea for a superhero ever.
Well, him or:
Dogwelder: A thin, silent man in a welder's mask who spot welds dead canines to evildoers, resulting in extreme burns and general horror. The question of how exactly one can weld a flesh and blood animal to a person is not answered by the series.