I can't really compare without seeing photos of the Buzz worn - I don't have any direct experience of either. Wouldn't surprise me if the Aero pattern was just a touch wider, though, as their A2s are a little 'boxier' in cut than some. This is, from what I have seen, to some degree true to the cut of the wartime Aero A2s (different company). I don't know about the B10s, though. I have heard it said that Aero's B10s are some way less accurate to the spec of the originals than Buzz or Eastman's efforts. That said, this is less important, imo, if you're looking at it for civilian wear than as part of a uniform impression. I quite fancy one of those gab B-10s Aero have been putting out at a great price if they have my size available again. (If memory serves, yours is one of these?).