I've had really good results with the Sena helmets, probably 1/2 mile in resorts, and longer in bowls. Super easy setup, on/off features, but the sizing is a little odd. They are a motorcycle helmet company usually, and I added a boa helmet dial to make the fit more traditional for a ski/bike helmet.
Also - I'm still waiting for a pair of Milo -- the mesh network communicator on kickstarter. I'm looking to use it rock climbing, and maybe mountain biking with groups, or skiing with new people. It looks really promising and can have a lot of applications in the outdoors, like even kayaking or paddle boarding. Granted, it was supposed to be shipped last December, so I wouldn't hold my breath but it was fully funded leaps and bounds given the popularity, and I still get updates for where they are delivering to early adopters. It is probably the most versatile option for general outdoor enthusiasts, and doesn't require cell coverage.