To me right now nobody. Calzaghe is at the top of his game his speed and defense are insane at this point. Jones still has speed and couldn't hit him with anything. Cloud is way too slow Calzaghe would be in and out all night long. Dawson is probably the best bet but the expierence level is much too great at this point. I just can't see anybody beating Joe. He should just fight Froch put him away then retire.