What boxer, past or present could beat Canelo Alvarez at his prime?

I think are perspective of the 1st round is very different

And the best McClellan was the one that wasn't in love with his power and boxed how he should like Manny told him to

 

I think I'd favour Canelo at 154 and 160

 

Billy Joe Snorters

 

I'd bet on Canelo against ODLH at 160.
Canelo has been good at 160 so far. But, his loss or losses against Golovkin... I'm not sure if I should put Golovkin's prime on ATG level or downplay Canelo as a fighter. Because a prime Golovkin really would have it easy on Canelo's prime - so far. If a 35+ can do that.

 

No

 

Current crop:
Ggg beat him already twice and will beat him a third time.
Past fighters:
Roy Jones jr
Hopkins could outsmart him
Hagler
Sugar ray leonard

 

Freddie Steele,Greb,Monzon,

 

I know someone who convincingly beat Canelo in his prime twice, Gennady Golovkin

 

i think canelo right now, is about as good as prime ggg was, and he may still get better. so i see them winning and losing roughly the same ratio, against the guys canelo is getting pitted against here.

 

There are too many that would beat him, too many to list.

 

i want to see him vs Pirog and James Tony

 

Depends. Is he just fighting Canelo? Or is he fighting Canelo and bribed judges which Canelo has a history of having.

https://thegruelingtruth.com/boxing/history-bad-judging-canelo-alvarez/

If it’s just Canelo any of the Fab Four, GGG since he beat him the first time before Adalaide Byrd drove off in her brand new Ferrari.

 

Yep. I'd also add Calzaghe, Ward, Martinez and Toney as definite winners on fair scorecards with Froch, Taylor and Kessler all in with a great shout in their primes at their best weights.