I can say that I DON'T regret getting afterbangs. It is a great rail ski, pretty buttery, and holds up on jumps up to 40 feet. Also I have had great durability with my afterbangs.
I have also heard great things about the ar6.
It just comes down to wether you ski rails or jumps more. THe ar6 is going to be stiffer and sick for jumps, while the afterbang is poppy and buttery for rails. This being said, both skis can ski rails and jumps.