Zenma

the hulk can regenerate fast and grow increasingly stronger and bigger the madder he gets and the more they fight.

is achilles good enough for leonidas?

what is up with the guy and the horse?

goku can fight with his eyes closed by hearing and sensing itachi's energy signature or life energy

what a fan boy

this battle may vary because if superman is fighting goku at an early age the he would win, but if superman is fighting goku at around GT then I'll say goku because goku fights better and faster, also dodges very fast too. Goku is very skilled in flight and his punches are quick and strong enough to hurt superman.

(note: goku was fighting cell and frieza when he was a kid again in one of the episodes in GT and he was just playing)