A lot of the Lorenz around here. Usually on 50 to 150HP it seems. I think a lot of blue ones too [Wildcat, or perhaps Rural; either way they don't make it anymore].
I remember Dad used a Canadian built [can't remember the name at all] front mount blower. That thing could make a path like nothing and seemed to throw it a mile [every couple years sacrificing a garage window in the process too]; however, it had a single auger in the middle with wings on both sides about like an inverted snowplow, so as much as it could eat fluffy stuff 5ft deep, it was a horsepower hog, and just lousey with hard drifts - either break them up with the loader on another tractor first or attack them from all funny angles to get the auger to contact the hardest spots.
I just use the loader; actually my wife will run the PT, so I like that even better! I keep thinking it'd be fun to drop the BH and mount a blower on it in the winter, but too cheap, besides that BH is nice to get out of a sticky spot even on snow.