The thing about Joe Calzaghe is his biggest wins have been in his last 5 or six fights. His three biggest wins imo are Lacy, Viet (2nd fight), and Kessler. Lacy was obviously hyped, but he was thought to be the biggest threat in the division, Viet was still green when he fought Joe the first time but he got a few good wins to line himself up withJoe the second time, and Joe disposed of him. The Kessler wim carries the most weight because he was/is in his prime and absolute best. Plus he walked through everyone else in the division. Also I still give him some credit for beating Eubank. But I dont think that win did much for his legacy in the long run aside from the name on his resume. Before the Kessler fight I would have said he is not quite an ATG. now I say he borderline. Maybe one more big win will solidify him as an ATG, or maybe time will.