What if you switched the fighters around and they fought in modern times ,just as is when they fought with each others real opponent.
Holmes absolutely clowns Conn and witherspoon out boxes Louis the same as Conn did but doesn't let up,is my take.
Conn might nick a close decision against Holmes over 12 round distance. Holmes had trouble with light-heavies. :yep Louis should outpoint 'spoon over 15. He had the experience. The only issue is whether he was tired and stale from his tough schedule.
Louis chops down Witherspoon for the KO 1-9rds, Conn would gives Holmes trouble with his movement and sporadic flurries like Mike Spinks did but the Holmes Jab would be a big problem for Conn Holmes win in 15 tough fight