I have a coworker that swears up and down by his 650. According to him you cant EVER beat it in anything.
Have a buddy that has an 06 500 with the auto tranny. I took it out right after he bought it. I compared it to my Polaris 500HO.
Power = Equal,
Speed = Equal,
Fuel Consumtpion = Better,
Suspension = Stiffer but more travel
Handling = Seemed top heavy(may have been suspension setup,
Seat = Softer,
Accessories = NICE! They make a portable deer stand carrier that works real nice, hold 3 stands firmly and securely.
He had trouble with tires, He had 3 tires go flat for various reasons, I had been with on almost all of his outings and didnt have any troubles. He put a set of 26' 589s on it and hasnt had any troubles.
IMO, ATVs are like bows - Personal opinion rules your taste.
Dean