I honestly don't know. It's tempting to pick the younger man because he's younger but it doesn't always play out like that.
WELL MORY, THAT IS EXACTLY HOW I PICK WINNERS IN BOXING ; WHO IS YOUNGER? AND WHO IS BIGGER? SKILLS SCHMILLS! TALENT GOES OUT THE WINDOW VS A YOUNG FAT GUY. YES SIR. IF BUTTERBEAN HAD FOUGHT ALL THE GREATS BEFORE HE WAS 21, HE WOULD BE THE TBE! GOAT! BMOTP! EVERY THING GOOD AND GREAT.
Ruiz doesn't have the head movement or outboxing ability to stay away from such deadly hands, but he does have a sturdy chin to take it for a while. I reckon Foreman TKO8
Lol foreman would be grinning like a kid locked in a McDonald's kitchen over night. A slow guy with plodding feet who stands right in front of him. Couldn't ask for a better opponent. His hand speed would not be an issue as he has the reach and height advantage and ruiz would be too slow to dodge the return fire so it would cancel out basically. If joshua's jab cut Ruiz in just 2 rounds, foremans cinder block jabs would make him look like he got jumped by a prison gang. Foreman nails and shoves Ruiz then batters his beer belly with brutal body shots, making him belch up and barf. Foreman closes the show with a devastating uppercut in the 3rd round that drops Ruiz who has no wind to even stand back up and the ref waves it off.