I think marvel wins simply because they have a larger roster and more heavyweights to deal with. You could even add wildstorm to dc and it wouldn’t be enough. Thats not saying that justice league can’t beat the avengers or that superman isn’t the most powerful man on earth. In fact dc sometimes ,not always ,has better stories with less books where marvel you may have to buy 50 books to complete a story arc. DC doesnt handle as many powerful foes or big time disasters as marvel does. Sure you can say that one universe has one all powerful being that trumps everybody else but thats a cop out. anybody can come up with a character and say that he’s got a bigger schlong than anything they have. You got to look at it as a whole. one companies line up against anothers.