"How do you figure Space is not a factor for these two? Superman can hold is breath for up to an hour in space."
So can Hulk. He has been into space before you realise. Also it's not a factor because....well knocking Hulk into space, does what? Nothing. Due to the laws of physics being a little bit NON-EXISTANT in comics, he could get back to Earth. Coz he has done before.
", so saying superman diddnt really die and come back from the dead beause you dont agree with the writers decesion is like me saying, yeah hulk doesnt really have limitless strength because it is just the writers choice to make him that strong. If it was published and printed it is a valid source of superhero fact"
Well Hulk really does have limitless strength. Superman died and came back but could die again. Therefore he hasn't conquered Death.
-AC