The Andries who knocked out Jeff Harding v the Calzaghe who feasted on the old incarnations of Hopkins and Jones.
I'm going with Calzaghe by a comfortable decision. Andries was still formidable, even in his late 30's, but he was too slow and too limited by comparison to an aged Hopkins who Calzaghe managed to get the win over.
Calzaghe would have his way with him. I liked to think myself one of Andries' biggest cheerleaders. And I know it is cliché, but styles do make fights. This is a horrible match up for Dennis, even the slightly more refined Kronk version. Andries was incredibly strong, but why would Calzaghe bother fighting on the inside? Joe would let Andries chase him all night, and Calzaghe's punches would just build up, to a point that even Andries would not be able to walk through them. Maybe Joe by late retirement, especially if his fragile hands hold up against Andries granite features. But Joe would win at least an easy, possible shut out decision.
Joe would have to treat Dennis with respect and couldnt afford to get too careless or too aggressive too early, Dennis is very strong...and very crude...and its those wild unexpected shots that can spell danger for the much superior craftsman - if he gets too complacent, Dennis caught up with Tony Sibson, but Joe has the Longer range versatility and mobility to matador Dennis Perhaps late in the fight, with Dennis perhaps stumbling with fatique and misses would be the time for Joe to force the issue and put the icing on a shake an bake performance, but with Joe clearly ahead he might be advised to stick to the winning formula, take few risks, and cruise across the winning line for a clear points win. if handled correctly Andries was not quite Dennis the Menace !