In my own, personal opinion, I feel as if it would be a pretty equal fight. I think it would be a tie. (That would be a good ending, but blah, in my dreams). Sasuke and Naruto are both equally powerful, each in different ways, but if I seriously had to choose on who I wanted to win, I'd say Sasuke.
Cause, y'know, he's awesome.
Next Con: Mechacon