I have have a '13 AM, '14 Cluggy and '14 Future and all 3 bats are flat out great bats, they all have their highlights, and feel-
AM feels more mid loaded to me, Cluggy slight endload, Future has a more pronounced endload, but all 3 hit the .44 and .52's great, I would say that all three are hot out of the wrapper, Cluggy gets hotter as you break it in, AM no break in period needed, and just gets nastier as it gets hits on it- I wouldnt hit it in temps less than 60 degrees in fears of cracking it.
The Future is GTG if you like an endloaded bat, I usually rotate between 4 bats depending on how long a day I have for playoff/tournaments etc.
In my honest opinion you wont go wrong with either of those 3 bats, they are all awesome- I'd say you can pick one, swing away, and drop some stones all over the place.
Prices new in wrapper, would be another factor, I mean retail for these are all up there, but the exclusives hold a higher price tag, so the Future and Cluggy would be the higher of the 3, where an AM can be had much cheaper, so if you really wanted, an option would be get one of the exclusives as your return, and then buy a niw AM since they are much cheaper- especially if you go with a '14 AM, they can be had a very good prices nowadays.