I think Dawson should beat Hopkins and that Hopkins should get old at some point, but the first Johnson fight showed that Dawson was a sucker for the right hand and that he could be hurt. Hopkins has one of the best right hands in the game and Dawson's volume could play into his counter-punching style. However, Calzaghe showed what a good workrate could do against Hopkins as well. It would really be a pick'em fight in my mind. I'd lean towards Dawson though.

I think Hopkins would beat Johnson in a fight that no one would give a shit about.