Had an Eagle Vee plow a few years back mounted on a Deere 855 (Diesel) Gator.
I didn't use the "Vee" feature much since I normally wanted to push the snow to one side. This one was manual adjust that I bought used (and cheap). It worked well and I'm sorry I sold it.
To me, it's not a pain to get out and manually pivot the blade...it's only a minute to do this...and the expense of a hydraulic blade wasn't worth it to me. Also, the weight of the hydraulic units can lead to wear on the UTV's front end.
A UTV/Plow setup isn't very good for heavy snow (8-10 inches or more). You'll run out of traction...or, at least, I did. But for lighter snows, it's a great combination and fast.
Snow plowing can be tough on a UTV...be aware of that. And, if the winch is used to raise and lower the blade, you'll wear out the first foot or so of the wire rope. I swapped out my wire rope for a boat strap which worked much better. Also, it's better to have at least a windshield, if not a full cab.
That's my 2 cents...