(Why Superman is best)
Response, Genny?
All of that is true about Superman, and I think Superman is amazing as a person and as a character (especially now when a lot of his comics deal with emotional issues or as in All-Star Superman, how he deals with death).
The Hulk is equally interesting though. Bruce Banner doesn't really like being the Hulk. As the Hulk, Bruce Banner simply cannot, and will not die. If he's ever in a life threatening situation then he will become this unstopable monster who can eat rocks for energy and who can regenerate himself even from death. I want to say it was Planet Hulk where the world was destroyed and swarms of bugs were there to attack Bruce, the sole survivor due to his condition, but he just couldn't escape death. Not from hunger, nor from dying itself. Superman grows old. He is going to eventually die. Which makes the Hulk more interesting to me (I don't think Bruce can die of old-age but I may be wrong).
In a fight between the two the Hulk can't win though. Superman can put him into the Negative Zone or simply put him into space where he can't breathe as I have never seen a comic where the Hulk can breathe in space.
So here is how it goes for me.
Superman vs Hulk = Superman wins
Hulk as a character, far more interesting than Supes.
EDIT:
Also I'm just saying that if Batman has like a day worth of prep-time then he will beat Superman (as shown in Superman: Red Son and The Dark Knight Rises (or was it returns?)).