Nobody mentions Tyson? thought he was always in great condition during his first career(except the Douglas fight). Or should we take into account the 2nd career and his conditioning during that period?
tyson himself said he had horrible stamina and that's why he finished fights early. believe him or not, he never struck me as being tremendous in this area
Can't help but think Pacquiao - while not the greatest ever - deserves to be in the discussion. Fights in the most energy draining style possible and never looks gassed.