I think it’d be interesting to take Superman and Spider-Man and have them switch universes.

Peter would then be in a world that very nearly worship it’s heroes. He would be beloved, accepted, and wildly successful as a hero. They might even make a Spider-Man museum. The super-hero community would welcome him with open arms, and he’d fit right in with his sense of right, selflessness, and moral code.

Superman would be presented with a world where most of it’s heroes are heavily scrutinized, or in the case of mutants; mostly hated. He would be distrusted initially, and after proving himself would still find it difficult to fit in, possibly finding himself at odds with the numerous shades of gray. A sharp contrast to what he’s used to in his world.

Just a thought.