Yeah id say louis to,with maybe someone like henry cooper who i met once,a nice bloke to have a quick chat to.
Truly a gentleman. The way he treated Mancini and his dad was moving and he was always the first to worry about fighters he ko'ed, of which there were plenty. Big power. Genuine concern and compassion for all his opponents after the deed was done. Excepting his very small blemishes post Pryor I i'd say Alexis is as classy a guy who has ever stepped into the ring. From memory he went and fought in battle for his country too when he didn't have to. Many have him top 20 all time too.
Max Schmeling deservs a mention. Verry atentive to the welbeing of oponents. Refused to continue against Mickey Walker if the reff did not stop the fight. Carried the defeated Louis back to his corner.
I met Max personally with my father, Schmeling was really a friendly and cool person, that´s a good choice. Another choices could be Benvenuti, Arguello, etc.
Micheal Grant always said in a sincere voice 'God Bless' to his opponent before the fight started. I dont know much more about him on a personal side. Frank Bruno was always a friendly, down to earth, heart on his sleeve, salt of the earth kind of guy and beloved in Britain for it.
I would say Floyd Patterson. He was always a thoughful gentleman and he seemed oddly out of place in the sport of boxing. After his winning fight against George Chuvalo, he was most complimentary to George and very sportsmanlike right after the fight, but George ignored him. Unlike most fighters of today who would have reciprocated by dissing him back, he still remained very chivalrous and complimentary of his opponent. That was just one example. He always wanted to help an opponent back to his feet after knocking them down, and he visited Sonny Liston alone after his second loss to Ali and consoled him. A very unusual man for a fighter and in my opinion, a very good man.
Fighters, especially those of the past, have always seemed like decent men, particularly being in such a brutal profession. Arguello was another classic example, as well as Jersey Joe Walcott.
Walcott, Patterson and Buno seem/seemed like nice guys. Foreman seems to be a nice guy in his late age.