Batman by a long way (is there anyone who didn't expect THE BATLORD's choice to be BATMAN?)
--- never liked Superman for pretty much most of the reasons given here. I mean, other than kryptonite, nothing stops him. He's a bloody machine. And he has zero personality. Also, he's the epitome of the American Dream. Puke.
BTW Batty if you venture into the world of comic books I mean graphic novels, you MUST try "Watchmen" and "V for Vendetta" --- never mind the movies, read the originals. You won't be disappointed, though you may need to order a new brain online, as your current one will just be fried!