At Middleweight, Mike McCallum. At Light Heavyweight, Reggie Johnson. Although, you could argue Reggie wins in both divisions. I thought he was better at 175, though. It would be close either way.
McCallum did better against Jones at light-heavy than Reggie, for me McCallum won the first four rounds against Roy. This is a close fight at middle.
I thought about this one the other day. I think McCallum takes this on points. Reggie was unlucky against Toney and Castro not to take the title but I think McCallum was crafty enough to counter Reggie's best. It would be tight but I'll go with Mike via a close but unanimous decision.