Size does not make a difference, like they say, it's the fight in the dog. You might fight some tall clumsy oaf, who has clodd hopper feet, that he trips over when trying to land a punch. Look at almost God Mike Tyson, he was not a tall man, but in his prime he could beat many tall fighters today. Patterson was listed as 6"0 ft, but he beat many tough fighters in his era, and the 1st to regain the World Heavyweight Title from Ingemar Johannson, on June 20 1960, by KO 6. Ingemar could hit, if Eddie Machen were alive today, he would probably say so.