Khan's chin was at it's all time worst during his 135 days, no question. When he went to 140, he obviously became stronger at the weight which probably helped his punch resistance in addition to 'Ariza's influence'...there's no way he would've taken Maidana's punches otherwise. Since leaving Ariza he's looked vulnerable again as we saw vs Diaz. But overall, his chin has improved since his 135 days but it's still not solid.
Price, because he was the last one to be knocked out. Khans gone a a few years since the Garcia debacle.
David Price or post-Haye Enzo Maccirinelli Khan has survived enough big shots to make me suspect that, although his chin is below average, it's not as catastrophically bad as all that. I reckon a good proportion of his many knock-downs (rather than KOs) are more due to poor footwork / technique than anything. He's frequently off-balance so when he gets caught, even by a punch that hasn't hurt, he goes over.
Why is anything that's considered racist automatically branded as 'EDL' on here? Pathetic, do your research.
Khan's chin is much better than Prices. Far, far better. He has taken some monster shots from big punchers and stayed on his feet. Granted he's also been decked by some lesser shots, but Price's knockdown in the first Thompson match has the be the softest knockdown in the history of boxing. He got a little tap on the ear. My nan could have taken that shot. They are on par when it comes to powers of recovery though.