I have McCallum by UD. Andries makes it interesting but ultimately MM's superior skill carries the day.
McCallum on points, similar to how he beat Andries' great rival Harding. A decent big man against a tremendous little man. McCallum had no qualms about guys carrying the fight to him, and if he thought Harding was easy to counter just wait until Andries starts throwing. Andries threw a lot of very wide, elaborate shots - the punch he took Harding out with in their second fight must be right up there with the most wild and crude knockout shots you'll ever see. He threw it with a virtually straight arm and it looked like a cricket delivery. McCallum would be walking him on to just about every jab and counter hook he threw. McCallum still needs to be professional about it and respect Andries' size and reasonable power - he'll have to move a lot and be in top condition. But conditioning and stamina was never really an issue with McCallum. Mike by clear decision. Too smart and precise for Dennis.
Tom Collins....there's a guy you don't hear mentioned much. That bout against Steward's guy Barber was his last shot. WBO title vacated by Moorer if memory serves. But even the home crowd was not helping him much. Wrong guy to be fighting at that stage of the game. So tough on the old reflexes guy fighting pedigreed up and comers.