best hero vs. hero fight

tell me ur favorite and the issue number thing and scans if u can
ill start off!!!
avenger v2 issue 5 thor vs hulk!!

anyone???

another one i loved alot
green lantern vs. silver surfer and
thor vs captain marvelin dc marvel cross over

An old comic,

He-Man vs Pre-Crisis Superman

The writer had to remove the Sword of Power to save PC Superman.