Frankly, I would never put the two (Mac & HP) up against each other. They are just two very different malts.
I would put Mac 12 up against Aberlour 12 Double Cask, Balvenie 12 Doublewood, and Glenfarclas 12.
Of those, there is a real shoot-out! In fact, I don't know which one I would go with! I would have to actually sit down and do a blind test, because I couldn't trust my memory/bias.