Hopkins is extremely crafty, I think the Hopkins throws one punch at a time and keeps Calzaghe on the outside to win. It would be a boring fight.

Tarver is always a problem because he has 1 punch power. But Tarver doesn't handle pressure well. Calzaghe beats him imo.

Johnson is trouble for anyone, Calzaghe would probably stay at a distance for the most part and work his way to a decision.

Clinton Woods works much the same way as Johnson imo except the fight isn't as close. I just don't think Woods is that good.

The others I don't know enough about.