OP had requested brand/size recommendations. I have only owned one PTO driven snowblower, a 78" Lorenz, with which I am well satisfied. The machine is heavy and stoutly built, both desirable attributes. A major difference between the Lorenz and most others is the augers. Rather than a narrow ribbon helix, the Lorenz has oblique, relatively flat paddles. These have proven to do well chewing into heavily packed, often frozen snow, e.g. the plowbacks left by the DPW, compacted roof snow, drifts. I have bent one hitting a cobble (rock) but was easily able to heat and beat it straight. I doubt that I could have restored a smoothly curved spiral if I had bent a helix.
Wet, slushy snow would clog the discharge chute, but I have had no recurrences since I lined the chute with UHMW PE (ultra-high molecular weight polyethylene).
Minimum width is wider than the tractor wheel width. Unless you are clearing large spaces great width may be a maneuvering disadvantage. Driveways are usually cleared with an even number of passes (out and back) so wider than a little over half the cleared width works fine for me. I also use the FEL to haul firewood and am glad I don't have a wider machine to worry about near the woodpile.