First of all the Mayweather that beat Alvarez at 152 beats Alvarez at any weight and experience level. Secondly, I don't doubt that Ruiz would try to press Ward but Ward hits hard enough to get Ruiz's attention. Ruiz might ko Ward but I don't see it as certain as others because Ward has his advantages also.
Ward doesn`t hit with anything like the power AJ hits with yet Ruiz got straight off the floor and walked him down, Ruiz is far more powerful than Ward and hits harder than Kov who dropped Ward and had him in bad trouble.
Canelo went toe to toe with GGG no way could Floyd have done that, Canelo is punching far harder at 160 than he did at 152 and he has improved, Floyd is finished as an elite fighter Canelo would destroy McGregor far quicker than Floyd did.
Although I agree with you in that the version of Floyd who fought Canelo could possibly have beaten today's Canelo too, it would be a completely different fight. If you stand off of Floyd, you're toast. If you push him hard like Oscar and Madaina, you have success. Andre doesn't hit hard enough to get Ruiz's attention. How many HW's after getting dropped by Joshua, would get up and hunt him down? This guy has got the same mentality as what Corrie Sanders had. It's just a horrible stylistic match up for Andre. You can't nick rounds by fighting guys like that on the inside. Ruiz would be absolutely relentless. Andre would have to keep retreating and covering up, and Ruiz would just keep on throwing.
Jones was caught at times by the slow handed John Ruiz, he was stopped at light heavy, Andy would catch him more than John and spark him.