Ok we have to address that speed of light thing, yes superman could have moved out of the way but he was surprised caught off guard so he didn't. If I move in to slap you, you could move out of the way but most likely wouldn't be able to without warning. His contingency didn't fail as superman was the one hospitalized not batman. Also he took down the entire justice league.... Yes I will agree he might have been groggy from the joker gas but it doesn't change the fact that at full strength yes batman could beat superman.