The NXT models are nice from Flow. I have a pair of the NXT AT's from a couple of seasons ago. Quite happy with them, though I don't have them mounted right now. Last year at the dealer demo days I took out the team binding. I thought it was best binding I demo'd last year (tried over six new models), it's expensive but very very nice.
Union, Rome, and Flow were the top 3 bindings I tried last year. The K2 Auto does get honorable mention but they had a recall last year. I would wait another season and let them work out the tech on that one.