Katsidis-i know he was tko-ed by Casamayor but he can take alot of punishment. Margarito. And i personally consider a fighter having a good chin even if he is knocked down and then is able to recover and continue a fight. Rico says that a fighter has a glasjaw after one knokdown-thats stupid.
Ngoudgo fought 9 rounds with a broken jaw against Urango! I don't want to say that Ngoudjo got the best chins out there because i remember him with soft legs against Augustus . I just wanted to show his courage!
Froch deffo has an above "good" chin.. he took bombs of Jean Pascal all night, also very good shots off Taylor, got rocked a little and went down but his head was totally clear.
Froch, Shane Mosley, Adamek, Arreola, Margarito in the past, Oscar the la Hoya in the past and since he moved up in weight Pacq. There are others like Vitali, Hopkins, Clottey... who have solid chins but due to their D, they don't get hit near as much as the ones mentioned before.
Hard for me to single one guy out but theres a bunch of guys who can take the spot. Shane Mosley - All of his fights vs top notch oppostion and was only dropped shortly after a hard headbutt vs Forrest. Arthur Abraham - Fought KO artist Edison Miranda with a broken jaw and still won. James Toney - Is he considered any active boxer anymore ? Rarely dropped or hurt in his career even now fight men naturally 100 pounds larger. Jeff Lacy - Good fighter ? Probablly not but between the Calzaghe, Jones and Taylor beatings he took over 2,000 punches and was only dropped once. Vitali Klitschko - Fights in the most powerful divison and fought its most powerful punchers Lewis, Sanders etc and has never been badly hurt. Lucian Bute - Was only dropped recently by a perfect Bute punch and yes was stopped by only by the body.