I'd pick Foster, Spinks, Tunney, Langford, an experience Patterson, Archie Moore and Charles has a very good chance. That's a few. I pick Robinson to beat Jones at MW.
RJJ in his prime was amazing, to use the johnson or tarver fights in this example is ridiculous. RJJ in his prime had everything, I would not feel confident what so ever in betting against him.
We were talking LHW. A few isn't lots. And Langford is so far removed from the era as to make any kind of comparison almost absurd. It's very possible that those you mention might do it. But equally, they could end up looking very embarrassed. Like all hypotheticals, we'll never know !:good