One other thing about the earlier years.
They used 8oz gloves and went 15 rounds. Since the Du Ku Kim fight, with boom boom knocking Kim out, and Kim dying later, fights started getting stopped earlier, and it went to 12 rnds in the WBC, and a little later the WBA.
Boxing was more brutal in the old days. The fighters we are comparing dont have equal equipment. The chins of the old day fighters had to be better to survive due to the much lighter gloves.
This also changes Tysons power too. He would have been more devastating with 8oz gloves. He also could be in chin trouble himself, getting hit with less padding.
Hard to say for sure, but very interesting.
Mag