i say calzaghe. roy has done more with his career to be honest he moved up in weight fought the best in each class except for HW but who cares he still won a strap and thats pretty impressive for a guy that started his career in JMW. but calzaghe stayed and dominated in one division basically his whole career. so it will be like this Calzaghe will be remembered KINDA like hagler is which is a great fighter who just dominated some good up and comers and stayed undefeated. but roy will be rememberd like himself he was the p4p best for a while moved up in weight to fight better competition and was the most exciting fighter to watch for this generation.