I am approaching my first winter on 63 acres, in the Wisconsin snow country. I have a 750 foot drive way with one steep incline to battle with this winter. I need an ATV for: plowing snow, hauling firewood, hunting, traversing the 700 acres in the family, but mostly to plow snow. I am considering Polaris SP 500, Kawasaki Mule, and since I am a Suzuki auto dealer, I am considering the Suzuki Quadmaster 500 automatic.
I will only consider automatics, 500 class.
The Suzuki is attractive since it has the most torque, 2wd or 4wd operation, and I can get a brand new 2000 model year for $5600.
What do you guys think?

I would say get the Suzuki, because you can get a good deal on it and because it can do everything you want it to do.

Although you didn't mention this but I think you'r best chanc'es are the Honda Rubicon 500 auto, and the SP500-HO 500 auto. Both are great machins that you just can't go wrong with for what you are asking for. Go to you'r dealer and test drive them both and you will see what I mean by "you can't go wrong with both." Hope this helped.