I'm not going to lie, tomorrow ScrewAttack is holding a death battle between Son Goku and Supes.
ScrewAttack used the canon information of the biggest encyclopedia related to DragonBall in Kazenshuu, thus you can expect all your questions to be answered.

There's one version of Superman (Prime) which Goku can't win against, but if they used that terrible writing version of Supes, you'd know that it wouldn't be fair as he's basically a god, it would show bias.

Goku will pulverize any other version of Supes.

At first ScrewAttack wanted all canon information pertaining to Goku, but they opted to use canon and non-canon which worries me, as Supes Prime is considered non-canon himself.

Hopefully Goku beats him at SSJ like he did with Broccoli.