I used a Polaris 850 to plow with for a while. Got a used plow truck for $3500 (with the plow) almost 4 years ago. I would not recommend a UTV for plowing as the truck is so much better...faster, heated cab, wipers, lights....plus it carries a lot more. I use it as a beater truck and can go off the property with it into town...something the UTV cannot legally do. It also hauls firewood which is something you do not need.
With the work functions covered...look at a Jeep. We also had a Polaris RZR and it is a blast but useless for anything else. Only a two seater though. Wound up selling both the 850 and RZR and getting a used Jeep Wrangler. No dust, seats 2-4, A/C, heat, wipers, cab, it does fine trail riding, and is another vehicle we can use anywhere and anytime.
Even my UTV dealer is getting a used Jeep as he thinks the UTV's are overpriced and limited in use. They are a nice toy until you go riding back roads with a few others and are not leading the pack. And If you want the sun and dust and wind, the tops come off.