Jeff would be the favorite going into the fight. And I would pick him to win, but I don't believe it would be an easy fight. Here we have two of the strongest men who ever held the title - both could hit, and both could take a lot of punishment. In spite of that, I would expect a rather dull, lackluster fight. Willard would be attempting to hold Jeff off with his long left. Probably a lot of clinching as well. Jeffries UD 20.