With all due respect mate...an all time great gets judged to be an all time great on the fighters he fought and how those fighters compared to the greats that other "all time greats" fought.....now are you honestly comparing tysons victories over people such as pinklon thomas,tony tubbs,tyrell biggs,frank bruno x2,michael spinks,trevor berbick etc etc etc...to marciano/louis/frazier/foreman/ali/norton and any combination of fights in those eras ???
As for tysons chin...the man wasnt punched for the first 25/30 fights of his career...people were too scared to hit him incase they caught a co