Shinglepro, Look at the ARCs. No bridle to get tangled in the ice-covered snow. Four line for good depower, power, and easy to fly!
These kites setup and fill so easily and you can also use them on the water. Standard ARCs also have an auto-zenith characteristic. If you eat snow, your kite will fly up over your head and sit there waiting for you to go again. You can also back the kite down to the ground with ARCs TE down (by flying it backwards). This way if you want to rest, you can just back it down and leave it there while you relax. Of you can reverse launch the kite from the ground LE-down by simply flying it backwards up off the ground. These kites are the best for land flying and since they are foils, they take a beating and keep on flying. They fly well to the edge of the window, too, so you can go upwind more easily than a bridled foil, which sits more in the window, than at the edge.
Maybe someone else can recommend another good kite for you. In terms of harnesses, seat might be the way to go. I use a seat in the winter to stop the harness from riding up when kite snowboarding with a jacket on. Check out the prolimit kite-seat harnesses. They are good. I just switched from selling DaKine to Prolimit and ride prolimit, myself.