Do you want a 50" or a 60"? The 50 is smaller, of course, and doesn't come in a 4 seater, but it will fit in the bed of a pickup and is legal an all atv trails.
We have a '12 Polaris 50" RZR 800. They're the 900's now.
There are only 4 50's made now that I know of, Polaris RZR in either 570 or 900, Honda Pioneer 500, Can-Am Maverick, either 800 or 1000, and Textron Wildcat Trail.
I haven't driven any other than my RZR 800. I'm good sized and I fit it fine. I do sit on a cushion for a bit more seat height. I have a hip problem that bothers me when I sit low. I put 70 mountain miles on it the last 2 days with no discomfort at all.
I've heard that the Honda 500 is a put-put. It'll get there reliably but it's HP rating is well below the others so don't get in a rush.
Don't know the difference between the 50" and the 60 ". What are they measuring?
