Fanboyism aside, I can only see one winner, Khan.

I think he wins in every department, speed, power, reactions, reach. The only thing I think Marquez has is a better chin, but I don't think he has the power anymore to knock out a top fighter.

I see Marquez getting his face mashed up and getting stopped by the ref late on. At this stage in both their careers I just can't see anything else. Which is a real shame as Khan is starting to collect some marque names on his record now by fighting them late in their careers.