This is a nice matchup. I think Williams's length would have made it that much harder for Mayorga to get inside to wing his power. But I also don't think Williams is nearly as polished yet as a prime Vernon Forrest, and... yeah. Finish that sentence however you want. With a few big reservations, Williams UD12.
Mayorga seduces Paul's wife, teaches his kids to smoke pot, beats Paul's ass, and then lights up a square mid-ring.
Williams i think would beat a prime Mayorga. Williams beat a prime ( plus bricks) Margarito in his prime and Margarito is just as strong as Mayorga is in which shows Williams has fought a fighter kind of like Mayorga style. Has Mayorga ever face a fighter quite like Williams before?