I think Ali might stop Tyson on cuts to be honest he seem to dice up peoples faces for some reason. As for fighters that give them trouble Foreman and Liston for Tyson they were big powerful and just as fucking mean as he was. As for Ali it have to be Holyfeild who i rate over Tyson think at his best he gives everyone a bad night guy had a heart like no one i have ever seen The other being Lewis who was great boxer and a fucking giant with a huge ass reach and power that be a nightmare for most people.