Are you going to attempt to angle plow snow? If yes I wouldn't advise a loader mounted blade. They hold up fine and will push a small mountain of snow straight ahead, but if you try to clear any sizable amount to the side the tractor will get pushed aside rather than the snow. Picking up the blade a bit will help considerably by transferring more weight onto the front wheels, but it still doesn't work like a pickup with a plow. The blade on a loader is much farther from the steering front wheels and suffers by the leveraging, the tires of a tractor the size you are considering are generally both smaller and maybe wider than a pickup, and you don't have nearly as much weight on them.
As was pointed out the dedicated frame mount does work considerably better because of the way it is mounted. A frame mounted blade needs to twist the whole tractor from a rear axle pivot point, whereas the loader blade needs only skid the front of the tractor to the side to deflect it. If you end up going with the
B3200, you might want to consider getting a snowblower for it while you can take advantage of the 60 month 0.0% financing. At $2700 the frame dozer blade is nearly half way to the price of the snowblower anyway.
I have a 63" snowblower on my
B7800 and clear nearly a quarter mile of steep gravelled driveway easily and flawlessly. I have the blower skids set to leave about 2" which keeps it from picking up rocks and sticks. At the same time I drag my 72" rear blade which is offset so it extends beyond the blower by about a foot. That picks up the last of the snow, and any rocks and sticks, and pushes them aside into small snowbanks that are wider than the swathe needed by my snowblower for any later storms. THe way Kubota has done the snowblower also allows swapping it from blower to loader easily in just a few moments.
Final thought, if your driveway is not too long, consider plowing it with a rear blade by either driving through the snow and angling it, or by flipping the blade around and pushing it in reverse. If there is too much snow for the rear blade to handle, you can always get it gone the ol' slow way, by removing it with the bucket.
Hope this helps!