IMO, the surface being cleared means
everything! Blades are great for pavement, but can leave you with 'curbs' in just a few seasons over gravel, etc, and water runoff patterns change all too quickly. That said, nuthin' like having a FEL as wide as you 'track'. (60" here)
My Box Blade is on when any other ATT is not, for
ballast. Anything I can clear manually to a shovel-width can be easily approached/parallelled up to with the BB and pulled away to be scooped & deposited, paved or otherwise. (setting PTO drop to 'fast' lets me jiggle stuck snow loose) With the FEL I can quickly deposit snow where lingering Springtime 'leftovers' are the
least nuisance. I get a nice hard-pack that can be slippery, but what's 5 mph on a fairly level driveway? YMMV, of course.
I clear 550' of gravel drive, ~30'x30' or so in front of the barn, plus parking for two and a two-car, paved approach to my garage. 4-6" of even heavy stuff is usually managed in an hour to 1 1/2. HST is handy for this task (30hp class here, not >50 ... got Synchro or S-Shuttle?) and the CUT's maneuverability outshines my older 6 cyl, 5 spd jeep with 7' 6-way blade o'all. ('poly' blade not awkwardly heavy, btw) I've had Turf Tires for 11 yrs and hope to find ballasted R-4s on the new CUT at least as good, come Winter.
btw: Somewhere between say 8" & 12" (200-300mm), and depending on density, sometime I work ares in 'layers'. Don't recall ever doing that with the Jeep anywhere, but the tractor/FEL handles it all with ease. I suppose if a guy had
traction to match enough
hp he could get about anything to work, but of course chains & pavement don't always get along. (Got gravel?)