If Roy Jones had a time machine and went back into the classical times of boxing he'd be a heavyweight. He was 180+ in the ring and had futuristic athleticism. But we all know Roy had a weak jaw, how does he fair against these top heavyweights from the past h2h ?
Jones, a natural 168 - 175 lbs fighter absolutely sparks out Louis. I don't even know why you're asking this question, it's simply evolution! Louis fought in black and white, before Nikes and Jones had a whole rap career - can't be touched, can't be moved, y'all must've forgot!
How can you expect a great fighter who fought in black and white to beat a lighter great fighter who fought on HBO and rapped? Joe Louis has no mixtapes, no guest verses, doesn't even have a voice over or a skit on any classics - the comparison is embarrassing - it's simply evolution!
Conn weighed 169 pounds vs Louis and came close to pulling off the upset. I'm not saying RJJ would beat Louis but I think he gives him more issues than what people are claiming here.