I have tried G3's, Voile Switchbacks, BD O1's and Bomber Bishop's and so far I like these the best. For the backcountry I use BD O1's and also love them, especially the touring mode, but for the resort I love the Hammerheads. I have them mounted on the 22 Design's adaptor plate because I didn't want to drill extra holes that wouldn't be compatible with other bindings and it has worked great so far. I love the adjustability. Can notch them up tight to feel like the Bishop's or loose more like the mid-stiff carts on the O1's for the powder (and thus can reduce tip-dive). They are even great for parallel turns. The climbing wire is 'spring-loaded' and very easy to flip up and down. Why can't all wires be this easy? My only complaint is that sometimes I can hear a 'squeak' from the cables when dropping the knee.
Doubt I'll ever use anything else for the resort. If the Axl ends up being light then may even consider switching my back country set-up.