It all comes down to the type of riding that you're going to be doing. Some of the many other factors to consider are the comfort, flex, forward lean, ease of entry, cushioning on the straps high back style , baseplates, and boardfeel.
But, in my opinion, the sickest bindings out right now are the NOW IPO and the Burton Cartel EST, with the union force coming in at a close third.
As always, you should check out your local shop, because 9 times out of 10, they're more knowledgeable about the product than most of the people on newschoolers.
If we want authenticity, then we must initiate it.