The Judah win was easily the best of his career. It was almost as if it never happened, it was such a whitewash.
He'd definitely improve big time if he got this win, since Mayweather is unbeaten and whatnot, but I'd still look for him to get another big win.
...but it sure is funny when people get so excited they start talking about fighters that never been in the the same ring.:rofl
Hatton is already arguably great and if he beat Floyd he wouldn't be great, he'd start to battle for legendary status with fighters like Leonard, Robinson and Armstrong. At the moment he has a top 135 and 140 pounder on his record. In Floyd he could beat a top 130 pounder, plus be linear in his second weight class!!!
Lennox was an ATG, he was fighting quality opposition from early on in his career, cleaned up domestically and then internationally (pretty much). This modern breed of fighter seems to be trying to seek approval as an ATG as soon as they beat a well-known opponent.
Yes - he would have a 44-0 record with titles in 2 weight classes beating Mayweather, Tszyu, Castillo, Collazo, Phillips, and Tackie. He would be on the borderline, but I would consider him an all time great.
Beating the #1 or 2 p4p fighter in the sport after beating Castillo and Tszyu? Yeah, that probably earns him ATG status. Or at least gets him close.
in terms of Greatness i think he will make the Hall of Fame. and he probably only needs another 2 or 3 title wins to be assured a place in the HOF in my opinion.