Most ATG fighters have had losses, and in their prime as well. All it means is that they either fought a lot more frequently, or fought higher levels of opposition. When rating a fighter, I think its most important to look at who they beat. Any fighter can lose on any given night, be it an injury, a perfect punch landing, bad judging, or just a bad night.
Tszyu resume is better than GGG as of now. The only knock is that tszyu had a loss early that wasn't avenged. GGG career is not over yet, so things can change. Who is better skill wise is debatable. They have slightly different style, tszyu is more of a stalker like Kovalev is, he likes to set up his jab as a range finder and keep his opponents at the end of his punches to unleash his right hand. GGG is a pressure fighters that cut the rings off to unload his arsenals at close to mid distance. Both never move up, but in Tszyu case it's more understandable. Early setback loss to Phillips takes time to rebuild and he unified the division late, plus welter are dominated by monsters arguably good to great fighters in margarito, Quartey, Whitaker, Oscar, Tito. All I would favour to beat him. So Tszyu achieve what he could have and expected from him, till he pass his baton to Hatton. I understand GGG goal to unified, however I think he could have achieved more instead of waiting for the money fight in canelo. A win over ward one division up where it would be close to 50-50 would have sealed his greatness, I believe.
And recall the Hatton fight was at an odd hour in the morning, and Tszyu hadn't properly acclimated himself, and also the ref allowed Hatton to grapple.
On that premise, any fighter can win on any given night, be it an injury, a perfect punch landing, bad judging, or just a bad night.
Also, when Kostya was at the top of his game, Mayweather was still campaigning down at SFW. Anybody that actually followed Floyd's career knows the kind of fighter he was for the first 10 or so years. The guy literally took on all comers and he was arguably one of the most avoided men in boxing for about a 5 year span. It's hard for people to wrap there head around that, but there was a time when he wasn't a PPV fighter and he was very open to taking on anyone in and around his weight class. That was Pretty Boy Floyd in a nutshell.
Irrelevant. A class C fighter can beat an A level fighter one of out 10 times, where as the A will win nine out of 10 times.
Kostya Tyszu no doubt. Though if GGG can beat Canelo in september, I'd rank him over Tyszu at that point!
Floyd never ducked Tyszu, so I've covered this, pimp C has covered this for years on this site now, so get over it already.
Pertinent. When your previous post was this : If you can't see the contradiction it is because you aren't looking.