I think Pavlik Kessler would be a great battle of chess. It would be a bit of a jabfest, but I think Kessler may have the flexibility to gain advantage over Pavlik during the fight. I would tip Kessler but I think it would be a test for both fighters... I think Calzaghe would just have too much for Pavlik.. He's got the full 12 rounds in the tank to match Pavliks pressure throughout, and to much ammunition, to much adaptability..
As Kessler said, his style 'spoils your boxing'... He'd be getting around that 1,2 all night and frustrate Pavlik's fundamentals which are so strong for him...