Re: Sonny Liston in the following fantasy h2h matchups
Should beat them all.
Should do it fairly comfortably also.
I'd give the best chance to gibbons because I can't see him being knocked out early and liston was never one to score a late knockout.
Fitz and greb are much too small and probably would never get beyond sonny's jab.
Charles and johnson don't have the required chin to deal with liston.
Gibbon's was a big lhw, highly skilled and quite durable. If any of those beat liston it's him, but i'd still make liston a heavy favourite.