I would go with Walters simply because of the size and power even though he is still a raw fighter I just feel the only way Rigo will lose is being caught with a big shot but in reality Rigo outboxes walters for 12 rounds and almost anyone for that matter. Rigo is simply a special fighter who is unfortunately around in the wrong era to really prove what he has to offer. Imagine Rigondeaux facing the likes of Morales, Barrera, Naseem, Junior jones and many more
Walters has a good chance based on size, Rigo is really 118 lber. Lomachenko probably best chance otherwise.
Rigo, still fights like an Amatuer. And there's no better Amatuer EVER than Lomachenko. Lomachenko gets his 2nd KO.:deal
Lomachenko only. Frampton and Walters have a puncher's chance but Rigo/Loma would be the best match of all time from a boxing point of view. I think if the fight happened next week Rigo would win but Loma's chances are going to get better with time as he matures while Rigo ages.
Don't forget folks. Cordoba and Donaire did floor him, and Marroquin had him wobbling a couple of times- if it goes the distance he probably beats everyone- but he's not as completely unbeatable as many seem to think on this site.
This. Rigo isn't iron-chinned and Walters is a big skilled puncher a weight above. Loma would probably be the only one with a chance of winning a decision.