Deadpool stomps in Round 1. Cap can win Round 2 if he uses his flight and his dual Redwings intelligently. As long as he stays airborne, Wade should have trouble hitting him, and if Sam is willing to use his more heavy weapons (which he very well might do once he realises Wade can regenerate) he could deal enough damage to keep Wade down to count as a forum win. Maybe laser his legs off with Redwing or something.