Superman vs Avengers
What would have happened if instead of Hulk fighting Iron Man Namor Hercules and Wonder Man at the same time. No flying no fast reflexes just stand there and take them on 4 against one no freezing breath Heat vision super breath just these guys vs Superman in a fist fight. Personally I believe he would have got his butt handed to him. In the crossover Thor took Superman to the limit yet Hulk has done well against Thor.