Since people are still saying that Goku would win, for some reason, let me put it like this, Goku would die from having the planet he's on blowing up, Superman have survived supernovas exploding on top of him.
Superman rapestomps.
Shinichi Miyamoto wrote...
if a single Kamehameha can blow out the entire planet, do you think that muscle-brain-good-for-nothin superwhatever can win?
I think you missed the part where Superman causually sneezed and several
GALAXIES got blown away.