And you named 3 black guys, two of which belong to the Mayweather family. The only guy in their family who has a proven chin is Floyd Sr who proved his case against SRL, but is still nowhere near top ten chins of all time. Roger Mayweather... Your making a joke I think right? I think most have been mentioned already, I like Patsy's call on Aaron Pryor that night against Arguello, beat me to it. Maybe not top 3, but he deserves a mention.
Current day..... Oliver McCall Antonio Margarito Oscar De La Hoya Shane Mosley Bernard Hopkins Vitali Klitschko