i tire of this argument. in a fair fight, no weapons – just simply fist to fist, superman would not lose to batman. that doesn’t even make sense. think about it. just for a second. superman could burn batman’s brains. or freeze him to death. or just ram hit at full speed. batman is a genius. BUT HE IS HUMAN.
as far as for literature, if you morons knew ANYTHING about writing, you would understand that it suits the writers to have batman defeat superman because its the thing that is likely NOT to happen – it increases readership. if superman defeats batman, that is what would be expected. its more interesting to read a story in which the underpowered person wins.
but if you really think that in a fight, just man to man, in a brawl, that superman would be defeated by batman, then you’re just a first class idiot. its really that simple.