You people saying Calzaghe would beat Jones are all guilty of the same crime.
You put a prime Calzaghe in against the ghost of a man they used to call Superman.
Prime Roy, or anything close to it knocks Calzaghe out cold in under 6 rounds.
This is a man who dominated bigger men his entire career and lost 13 rounds on judges scorecards in 14 years (including Hopkins,Toney,McCallum,Hill). Once he came down from heavyweight (after becoming the first and only fighter EVER to start at 154lbs and win a heavyweight crown) he was never the same. He beat Antonio Tarver but faded badly the second half of the fight.
In his next fight he got caught and KO'd by Tarver.
Some of you may be too young to realize but Roy Jones Jr losing a fight was unthinkable . . .watching him get KO'd was a shock to the world.
His next fight was against Glen Johnson . .a good fighter, but a man Jones would have destroyed at any point in his career prior.
When Roy emerged from the dressing room he looked 10 years older than he ever had previously. I remember freaking out ad saying "Oh NO, what is wrong with Roy? Look at him!"
He lost three fights in a row . . .and THEN Calzaghe fought him.
Calzaghe was a good fighter . . no doubt . . .but to suggest he would beat anything resembling the best version of Roy is lunacy.
The ghost of Roy Jones Jr was able to knock Joe down in the first round.
The real Roy gets him out of there in under 6.