In reply to Paul Hy: Hiya,
I would trend towards Grivel Air Tech with New Matic bindings.
For the terrain you described, I think they would work a treat. The points are shorter and wider apart on the forefoot making them feel more stable than the other two on rough, bouldery ground,like the Edges.
Of course there is nothing wrong with G10 or 12's.
The New matic binding will give a secure fit (Once correctly fitted), and will help to reduce the chance of your feet getting cold because of the strap going around the front of your ankle that is part of the New Classic (Full Strap On) system.