Well, on short: I don't really know Goku because Dragonballz has never been much appealing to me. I do like Anime and Manga to some extent, but my favourites are manga like NausicaƤ or Princess Mononoke by Hayao Miyazaki.
To judge who would win one should have an idea what they would be fighting over, I think. From what I read on the wikipedia link you provided, Goku seems to be the hero, right? Which means there wouldn't be a reason for that fight anyway. Unless he's up to harm earth in some way, which would definitely mean he'd be beaten by Superman, because Supes never failed saving Earth, or mankind.
If I imagine it the other way round it might go like this: Superman runs into some red kryptonit which changes him into some sort of evil twin. In hat case, I'm sure Goku would manage to keep him in check until the effect runs out. Because that's basically how most comics go: All's well that ends well.