Let's see, 'other than Superman'.
Hero: Lois Lane (Hey she may not have super powers, but she is definitely a hero). If you want to include powers, then I really liked the Barry Allen Flash. I always enjoyed the fact that, even though The Flash was a big-time superhero, Barry was still a regular guy (and the fact that he was dating a newspaper reporter had nothing to do with it, really)
Villain: Tarkas has it right. Darkseid is the ultimate villian of the DC universe. Much of his appeal as a villian comes from the fact that he's not so much evil and he is completely amoral. He's only interested in those things which 'please' him. If destroying his 'enemies' in the most horrific ways possible please him, then so be it.
Tank (who has also, over recent years, discovered several alternatives to mainstream super hero comics that he found very entertaining)