Originally Posted by Whiteroom
Naxo's big selling feature is the dual pivot toe which helps give it a more natural 'feel' when walking. It's also slightly stronger torsionally so it skis pretty good.
The Naxo is actually the sloppiest side to side of the "burly" AT bindings. The double pivot is nice for walking though. They ski well. They seem to be very sensitive to any snow stuck on the bottom of your boot.
Skied the Dukes today, they felt solid, and I will probably drop the Naxos soon, and get those. I did not walk in them.
Dynafit will not work with alpine boots. They rock for touring though, they walk the best due to weight and pivot location. They ski really well too.
The Diamirs (Fritcschi) are the old standard. I believe they are also highest off the ski. I have not skied or walked in them.
IMO there are no bombproof bindings in the AT world. At your weight and style though, you should be OK on any of them.