My money is on Mason to grind out a late stoppage. Gary had a good chin and never gave up attidude. Will never forget the way he thru himself at Lewis in the 7th round in desperation trying to win even though he was in great pain. Foster didn“t show that determination against Quarry or Ali.
I like Foster's work better. However the point should be made that Foster's career played out, while we perhaps never quite saw Mason's ceiling.
I wouldn't bet on Foster being able to take Mason's punch, and Gary ended up having much better wins despite his much shorter career. The Brit takes it.