Going back to this one here, I really think Superman gets the nod in this one. Gladiator's powers are strictly related to how confident he is at the time (ie if he knows he's going to beat you, you're dead). AFter trading blows w/ Superman, I see his confidence draining to the point where Superman could just crush him.
Taskmaster v.s Batman, who wins?
They should make a show in which random mishaps happen to Lex and drive him slowly insane.
"GOD! THIS TOILET PAPER IS PUT ON THE WRONG WAY! HOW'D THAT HAPPEN? I DON'T KNOOOOWW"