Whether Khan won every round in his last 5 fights or whether 3-4 of those rounds could possibly have gone the other way doesn't make that big a difference. Either way he's been extremely dominant and the proof is that the worst case you can make for him is that you scored a couple of swing rounds for his opponent.
Who knows, Khan could be Kobe to Pacquiao's Jordan. Im not too sold on his legs though, too skinny. He's got that frame where if he gets tagged with a big shot he'd lose his legs.
I think its his skinny legs that does him the best credit to his style!! He has a lot of weight in his lean muscular upper body. Its why some of his fighters could make the argument that hes on PEDS. I don't think he is, I just think that his proportions support having fast, elastic, upper body muscle and tendon. And, lactic acid builds slower in the smaller muscles, so he should be genetically more apt to be spry in the later rounds. I would like to see more abdominally driven head/body movement from him though, he can't go to war every fight, you know? Proof positive: going to war too often will ruin a fighter.