People don’t understand how strong Superman is if they don’t read his stories and it’s simple as that. Superman would own, hands down. In the movie Superman (1?) when Superman spins around the Earth to reverse time he essentially has created negative entropy or a system of negative entropy all by himself at such a huge scale. If it’s not negative entropy and therefore follows the law of “messiness”, then that means the work done in his body compensated for that feat. Amazing.
..This doesn’t demonstrate how he’d do in a fight but if you still think Goku would win, then you just don’t know.