I would say in Alaska it's even more than that. UTV's are extremely common here for both hunting and access remote cabin properties. A few informal counts of done in Sept show Polaris outnumbering all other UTV's combined.
I personally use a couple midsize Ranger 570's. One personal rig, and one for a job at work. They aren't perfect, but they hit a sweet spot on value and function for most people. n For real off-road or heavy hauler use, the mid-size ones need a few modifications (HD rear springs, stiffer tires). The 900XP's are pretty much ready to go as-is for most people. Any Polaris has massive aftermarket support and a huge range of factory add-ons which is one of the big draws. Current generations are designed to easily integrate all the popular mods (cabs, snowplows, chainsaw rack, etc) without looking like a cheesy afterthought.
Other than Rangers, the only other one I seriously considered was Honda. Even the current generation ones have drawbacks though. Notably for me is the a lack of high/low range in the 500 and 700. May not be an issue for most people, but I need a crawl gear.
The only other thing I would add is that power steering is completely worth it for rough trail use. If its mostly FS roads, then not a big deal.