Well saying anyone 100% beats him is a little bit much. The whole point of wanting top fights to happen is because that's never going to be the case. He is fundamentally very sound, has legit power and a granite chin, and unlike many guys you could name here he isn't on the decline. Beterbiev and Ward would be my top two as far as who i would favour to beat him, Bivol also has every chance. I think how effective he is at 175 is still a bit of a question mark, as Kovalev wasn't exactly red hot and still gave him big trouble(I didn't think Kov was winning like many did, but there was room for him to have been, if that makes sense.) Callum Smith does marginally better than his brother did imo, Saunders would need to box out of his skin to capitalize on what advantages he'd have, and GGG is clearly not the same fighter who beat Canelo the first time, regardless of how you scored the second, they are going in different directions. David Benavidez would have the best chance of anyone not mentioned so far, that's a great fight.