Since this board only responds to heavyweights, this is my match-up. I feel Byrd is vastly underrated whilst Charles (at heavyweight) is a bit overrated. I am still cogitating on this one, but give me your most brilliant insights? Shall ye?
I got three pages out of bantamweights... Hmm. Give me a minute. 1 minute later: My first instinct us to go with Charles. He dealt well with slick boxers (Moore, Maxim, Burley, Walcott, etc.) but none of those guys were Byrds size. Charles by decision because he's in glorious black and white.