So how would Khan fare against Maidana?

I'd add Ortiz, Valero, Antillon, and Campbell - and maybe even slower guys like Katsidis, Arnaoutis, and Urango to that list. Basically anybody who hits harder than Kotelnik and isn't absolutely devoid of offensive skill is a no-no.

If Khan is matched against guys with weak-to-mediocre power he's potentially competitive with anyone left in his weight range (assuming Roach stays in his corner). It's like that game Guess Who, you just need to eliminate the nightmare scenarios.