Alpha Centauri
Restricted
When you break it down, Superman's most known enemy is Lex Luthor. Some weasel. Superman could kill Lex and end the BS, he doesn't (to my knowledge, I never claimed to be the most knowledgeable Supes fan) kill him despite having reason to. The only reason Hulk hasn't wiped General Ross off the face of the Earth is because:
A) Whether she LIKES him or not, Betty loves her Father and Bruce loves Betty.
B) I don't believe General Ross deep down really wants to take away The Hulk as much as we were lead to believe.
He clearly knows Hulk only gets angry when provoked, he clearly knows if anything that Hulk is Earth's best defence if any sheer, utter force were needed. Possibly scientifically too due to Banner. I mean, when Hulk gets pissed he takes out whoever needs to be done in, runs away. Then comes home again.
Superman could stroll up to Lex and kill him off pronto if he wanted to. I remember reading, as people have mentioned, the one where he almost chokes Lex to death and it's debated whether he gave him a lobotomy or killed him (no cartoon reference).
With everything included that would be included in this battle, which means no super speed and no (likely) lifting of mountains Hulk would smash on him.
-AC