Dirrell/Ward, a brilliant matchup between two classy fighters, cant really split them, would have to say Ward due to his better wins. Kessler/AA, wouldnt even be close imo. I think Kessler could probably stop him if not win a clear shutout. Kessler/JT, great fight, I think The Viking Warriors stamina would give him a close points win at the end. Dirrell/JT, likely a close Dirrell win but JT would cause problems.
Kessler definitely wouldn't beat Abraham by shutout. Froch only could because he kept the range so well. Andre Ward couldn't do that and neither could Dirrell. Don't see what Kessler would've done but that looks an excellent fight on paper IMO.
Dirrell vs Ward would have been a stinker. The little fanny ought to just become a track athlete and leave boxing to real fighters. Tell him to take Ortiz with him too. Kessler vs AA would be a great fight, a younger Kessler would have far too much AA and shut him out on points, the older Kessler would oblige AA and stop him late I feel.