I've spent many hours behind the wheel of plow trucks. Anywhere from pickups to tandem dump trucks with 12 plows and wings to full fledged self propelled snow blowers (Sicard Junior!) and wheel loaders to clear the airport we used to service.
Our New England snow may be heavier, but it doesn't take much to stop a truck with a plow. Same goes for the tractor with a plow. The problem comes when the truck or tractor starts bogging and the operator starts ramming through. This causes snow and ice to pack in front of the blade, raising the blade and causing the truck/tractor to loose traction. Very quickly, you will loose the ability to move forward and backwards. And now you have a very heavy vehicle that you can't pull out, stuck between you and the rest of the world. Another problem on big storms is that you must plow with the storm no matter how big the equipment is. This could be very dangerous when visibility is poor, especially when steep, twisty roads are involved.
The snow blower will chew its way through everything you can throw at it. By going slow and clearing everything in front of you, you will avoid the battering ram mistakes and your chances of getting stuck are much less likely. You can take your time and start at the end of the storm whe you can see everything, and blow the snow much furthur away than a plow or wing can push it.
As far as the tractor spec, previous members have had some great suggestions as far as equipment and power needed. I'll second those and add the requirement of the blower and upgrade to the best radio you can get with the cab model tractor. You'll appreciate it!