I'd look at Polaris.
I sold ATVs for years - Honda, Kawi, Yamaha, Suzuki, and Polaris. The Sportsman series ALWAYS had the best handling, hands down, of any machine out there. We'd do entire days in the forests, with a fleet from all manufacturers, and either they'd beat you up, or the steering geometry was wonky and they would dive left or right if you so much as twitched on the bars, or the seats sucked, or you'd get covered in mud and debris. The Sportsmans kept us relatively clean, the steering was dead-on, their EPS was head and shoulders above the rest for ease of use and assist level (speed sensitive - faster speed = less assist), they have an available engine braking setting (and on the Utility models, there's a max speed setting if you're spreading seed or doing other farm tasks that require stable speeds), and the suspension simply soaked up the bumps and ruts and rocks like you were riding on marshmallows. And, they put some sort of magic...SOMEthing in their seats that was awesome. The 450 is a great bargain price unit with the same great features as the big boys; 570 is one of the most popular ones out there; the 850 and 1000 are the answers to "how much power is too much?". And, their AWD system kicks in with 1/16 of a wheel rotation - you never wonder "is that 4x4 gonna kick in soon?", it just...does. Seamless.
RIDE THEM FIRST.
Don't buy price. You have to ride them. Steer them. Feel the seats. Feel the throttle response. Look at the accessories and options. Ride with and without EPS. Ride with AWD, and with shift-able 2wd/4wd.
For my money, if I needed one, I'd go Polaris. No question. And, they weren't in our shop any more frequently than any of the other brands - reliability is up there and I wouldn't hesitate to put one to work on a regular basis, as well as go out and rip-n-tear for fun.