so heres the deal
look:
nova 10 ($99) these bindings are good for beginners and intermediates, and certainly nothing freeride oriented. do not get these bindings!!
px12 ($169) new heel design. has more forward pressure and downward pressure than the old pivots. still have large amounts of elastic motion, which is great for freeride/park. great binding. you could probably find a p12 (pivot heel) from prior years for less money. search around.
rossingal:
scratch 120 ($169) exact same as the px12 (unless the model of px12 is with a lifter, which this one does not have). cant go wrong with either. once again, you could probably find last years binding (excellent as well) for less money.
solomo:
s810 b80 ti a+ ($159) intermediatish-avanced binding. toepiece is adjustable, which is great, but also bad. it is a hassle to adjust when it losens up. not as good as look/rossi
in conclusion, look or rossi is the ideal choice