As long as it isn't Pre-Crisis Supes, he IS vulnerable to telepathy. So there goes Supes.
Someone mentioned Strange being wicked paranoid. Agreed...he'd have at least a decent enough telepathic block spell up (prep time or not) so that he could react...uh-oh to Xavier. But Surfer's the wild card. He could take Supes heads-up, it depends on what Strange does, and we don't know if Xavier could shut his mind down.
So in this scenario, pulling together what I've read on this thread and what I know myself, I'll say that the only one who couldn't win is Supes. The other three could all win, but of them I'd favor Surfer as 1, Strange 2nd, and X 3rd....not definitive, but since we don't know enough about them, and it depends on what Strange does, it's the best I can think of.
-DM