first things first, dont buy a polaris, they suck. i have a 2001 yamaha kodiak. i think it is the greatest machine ever. if you ask me a 400 hundred is all you need. the kodiak was atv of the for 2 years in a row. you dont need a 650 or 660. sometimes you do need 4 wheel drive though. if you were to buy a big wheeler i would get the yamaha. i have ridden both the kaw and the yamaha, and yamaha is the best. honda is good too, but yamaha is just as good and not as expensive as the hondas. the best all around wheeler is the kodiak. take it from someone who spends all his time 4 wheelin and hunting get the kodiak.