We were in sort of a similar situation a couple yrs ago and went looking around in Duck Creek and Brian Head. We lived in St George at the time. We ended up taking a big swing at a foreclosure in ID which got us what we were looking for every day instead of part time. But on to your question.
Brian Head is the main attraction in the winter. They have been struggling for a few yrs so I'm not sure what the rental market is like. I seem to recall lots of vacancies during peak times which would not be a good sign.
Duck Creek is more remote which has a certain attraction. One con is that I think a lot of people also try to rent out their vacation cabin also. Drives the rental rates down. The biggest drawback we saw was the proximity to others. We looked at more than a few that were tucked into some small pockets of other cabins, on small lots, that looked poorly maintained, some yr round residents, and some banjo playin hillbillies. I would steer clear of these small pockets of cabins.
One of the others deal breakers for us was something simple like water. There are a lot of places that don't have water service. They are set up with tanks and self contained. Requires a water delivery to stay topped off. Not sure how it works logistically, we never got that far.
The good thing about Duck Creek is it seems to be more user friendly yr round for winter fun as well as hiking, fishing, hunting, camping, etc. It is high so expect lots of snow at different time during the winter. I'm not sure how the roads are maintained, who maintains (plows) them. Again, never got that far.
The biggest pro is the area is beautiful yr round with tons of access for anything outdoors. Good luck.