If you're looking at a front-mounted blower, then the mounts are somewhat specific to a tractor. In such a case, the choices are mostly the tractor manufacture's and brand name blowers. Choices are wider for 3ph blowers, and blowers made by regional large welding-shops are fairly common.
I have a 'no-name blower (actually called a Meteor) which gave good service last winter. My dealer located the blower as part of my original purchase package. I was starting to get price sensitive, and I suppose the blower was a way of putting together the package I wanted at a price I'd go for.
I think a blower is a good place to shave money off the purchase price, if that's desirable. Machined and hydraulic parts on no-name implements tend to be mass-market or OEM parts, so getting parts and service on such an implement shouldn't be a problem. I don't think blowers are subjected to stresses as high as many other 3ph implements and they probably aren't in use for as many hours outside commercial operations. By comparison, an inexpensive lightweight box scrapper is no bargain. Light scrappers don't work very well, and the 3ph attachments on some end to fail.
I suppose a name-brand blower may have larger blades, and may throw snow farther than my blower. However, mine gets snow out about 30' with the chute fairly open. I don't really need to throw snow any further. My blower is 5' (with 24 pto hp). The width barely covers my tire tracks, and I really don't need it any wider. I clear part of my drive my drive to about 15' wide. I'd still need to make 3 passes even if I had a 6' blower. After you cover your tracks, anything wider is related to how many passes you need to clear an area.
Oh yes, mine is a 3ph blower. It may seem a pain to drive backwards, but I use my loader too much for stacking etc. I wouldn't trade my 3ph hitch for a front mounted one. I do have 4 reverse gears in my manual transmission, and I wouldn't want to do with fewer.