In reply to elliptic:
I'm by no means experienced and ski likely a lot less than some guys on here, so just my personal experience of a limited range.
I switched from some heavy frame bindings last year to G3 Ions and have found them to be excellent. Nice and light, release fine during my many silly low speed crashes that I tend to have when mucking about with the kids but also felt nice and stable when pressing on a bit both on and off Piste. I used them for a week of resort skiing earlier in the year when snow was pants so little off piste fun to be had and they felt solid on piste hammering hard too, I'm no lightweight and at no point felt anything less than planted and in control on my bindings. Certainly at the level I ski at no decernable difference between the G3s and the various Alpine bindings I've skied in the past. They felt much more stable than the frame bindings.
I'd been looking at the ATK Raiders, they are what I'd really wanted but they wouldn't fit on my skis as they'd been drilled too many times previously. Ended up picking up some new skis off ebay with the G3s on - WhiteDot R.108 - and have been really happy with both the bindings and the skis.
Last years G3 Ions currently on offer on the G3 wbesite too..
I think as others have said, you'll not go far wrong with any of the main pin bindings brands these days - Dynafit, ATK, G3 - all solid with their own querks. I guess it comes down to your preference and budget.
K