The answer you're looking for is yes. We are definitely sure and there are many proofs for that answer. Superman's total percentage attack is 98.9% and "The Four Fantastic" together's total percentage attack is 87.3%. The Four Fantastic were somehow badly battling to put down there worse enemy "Dr Doom" whereas Superman, himself destroyed "Dr Doom" with no difficulties. If Superman was a merciless hero, he would have terminated "Dr Doom" fatally . Generally Superman wins.