I agree with everyone else here. From what I've heard, you can't go wrong with the AR6 unless you are going to be doing strictly 100% park. The T-halls are basically nothing but park, while the AR6 gives you a little versatility.
I had another thread about the AR6, but it got buried so I'll ask here to some of you that know about the ar6 and armada's skis.
Do you guys think the 171cm AR6 would be too short for some one who is about 5'7" and 140lbs? It seems like a relatively soft ski, and I'm a good skier so I worry that I'll overpower it. On the other hand, it would be for only Minnesota/Wisconsin skiing, so pow/backcountry isn't an issue.