LMAO.. that's a tough one.
Well, I love both supplements.....hmmm
I would have to go with Mass FX MS. Now here me out...
If I was on an island and I could only pick one out of these two, Mass FX MS hands down.
Reason being, I'd have to find some way to get aPCT to the island and I doubt that the Professor would be able to make me a magic sup out of coconuts!
All kidding aside, I got really lucky and was logging Mass FX MS for AX, then was asked to run 3-AD as well. I would run the same in the near future, just because of the awesome results I had.