What I would say is that Hatton's big fights have all been carried out in recent fights, and before his Kostya Tzuyu fight, he had never really been in what would be considered a huge fight. Meanwhile, I reckon that Calzaghe has spread his big-name fights over his 10-year reign as WBO champion, with Eubank, Reid, Mitchell, Brewer and Lacy all at steps during his career. I also think that the length of Hatton's career at the lighter weights will naturally be shorter than Calzaghe's, both because of Hatton's size and lifestyle.