Haney is substantially bigger than Stevenson. Longer arms, bigger frame. He should win. His issue is going to be against anyone who can walk through his jab the way Garcia did. At 140, I think Stevenson would lose some of his quickness. Just like Haney, his style won't translate well at higher weights. I do think he'd probably do a little better, but it would be horrible to watch. They are better, but both of these guys are closer to being Cory Spinks than they are Floyd Mayweather.