Probably Khan but I've lost a bit of confidence in him. Plus I don't think we know exactly how good Burns is yet. It would be interesting, don't see it happening anytime soon though.
I've done a thread on this. http://www.eastsideboxing.com/forum/showthread.php?p=13844938#post13844938 A bit of a tough fight to call, but I favor Khan. People suddenly have the assumption that Khan is easily beatable now because of what's happened. His speed still causes problems for any opponent to this day and with all due respect to Mitchell, he's not world class. I hope it happens.
Khan because he has exceptional height for his weight, exceptional speed to match and the heart of a tiger.
Well ill say this, if Ricky Burns marches forward against Khan like he did against Mitchell (i know Mitchell isnt Khan!) he makes it very very interesting