I alway believe that Jack johnson was overrated. His biggest wins were against Tommy Burns and Standley Ketchel. both of them didn't weight more than 168 pounds and was not close to 6 feet tall. Johnson was 6'3" tall and between 205-225 pounds. Jim Jeffries was the same size as Johnson. He came out of retirement not boxing for 6 years and was up to 325 pounds. He had to lose a 100 pounds and was 35 years old. his resume doesn't stack up to other great Champs.