Either way I do not think we have seen enough of Ruiz to make any real decision how he fairs head to head with past greats.
OK, seriously, on pedigree you have to favour Louis, but Ruiz is not an easy out for anybody. I think Ruiz is better than Galento by a long way. If he gets Louis hurt it could be a problem, because he can finish.
I genuinely really like Ruiz but Lewis, Liston, Tyson and Klitschko among about 7/8 others all beat him pretty easily