I've never seen a tracked UTV compared to a snowmobile. How does the track surface compare in acreage? I suspect that getting one stuck could be a nightmare although a UTV is more likely to have a winch aboard.
Have you rode a fracked machine in the snow? I'm not talking about hill climbing and doing 70 mph across a field. Cruising roads with too much snow for a truck to drive on looking for tracks, glassing etc....