Who is the more devastating fighting machine, aaron pryor or manny pacquiao?

I'm happy that you want to know the bright minds in here. I am by far the most intelligent person in the boxing section. It would be a honor to have you add me as a friend. It's a toss up on who was the most exciting fighter to watch. Over who was best I may pick Pryor just because of his iron chin. One of the greatest fights of all time was fight against Alexis Agreggeo.