I go with Lyle; not that it truly matters who wins. Prime Louis beats the heck out of both challengers.
Williams was really an attractive looking combination puncher. He looks more dangerous than Lyle ... except that I think Lyle can take the incoming and Williams cannot. 60-40 to Lyle imho.
Lyle...better chin, better stamina, both hands power and beat better guys than Williams in better era than Williams.
Lyle outlasts him to stop him mid-late after dropping the early rounds, but this isn’t a given, I feel like Williams is underrated, he never was able to fully prove himself, lost to Liston, but didn’t lose to anyone else at his best, but never beat any names either, drew with Machen, the eye test shows me that Williams was in fact decent, fast hands, feet, good combinations and set up attacks very well, whoever the winner is loses to Louis, although either could theoretically give him a good fight, or Galento could have success, so could these, but Louis would be too crafty and skilled down the stretch, he had better upper body movement and that’d give him more ways to land and set up punches as they look to engage, especially as they tire and start making more mistakes, Louis could get low come over the top, roll and fire combinations etc.