I would recommend getting a 4X4. Of course it depends on the terrain you'll be riding.I have a Polaris "Sportsman" 500 which is 4 WD.I've been in mud and if I didn't have the 4 WD I would have been stuck.One time even with the 4 WD I buried it and had to get a friend with his tractor to pull it out. The next week I had a Warn 2000 winch installed. Some models are or were full time 4 wheel drive.Mine is on demand which the 4 WD only kicks in when the rear wheels start to spin. I can keep it 2WD by shutting the switch off.Granted the 4x4's do cost more ,but unless you plan on staying on flat dry land I would spend the extra money.There are so many different makes , models and sizes to choose from. I'm sure you'll find one to fit your needs..
Good Luck on your selection.
Ruger Redhawk

..... A Proud NRA Life Member since 1977 .....Ruger Redhawk