Welcome from Alabama.
I don't have to plow my drive, but I do pull a tow behind landscape rake to level and fill in the ruts and pot holes up a fairly steep gravel drive and have had no problems with the P5. I'm sure any Honda would serve you well.
One question you might want to look into with the Polaris and plowing snow belt slippage in those wet conditions. Also when descending your steep driveway, the Polaris uses a CVT where you have to be applying power for the belt to get tightened or else you will be free wheeling and relying on your brakes to slow down, whereas the Honda driveshaft will allow your engine to help slow you down.
IMO - Having done my share of plowing when I lived in Michigan, I would prefer gears and a driveshaft.
Good luck in your quest.