Okay, I prefer a dreadnought. Nut width -- I'd say more than 1 11/16. Scale length, frets -- no preference. Prefer no cutaway. With my budget, I'd prefer to buy used, would even have to do so with the higher end models. Been playing 50 years, am a songwriter. I haven't played any Gibsons or Martins or other big name brands in person -- no music stores within 90 miles that carry those brands. But I do have a Sigma SDR 28, and it sounds a lot like the Martins that I have heard in Youtube videos. From listening to those videos, I like the way Martins sound compared to other brands. I also have a Norman ST68, all solid spruce/rosewood, great guitar -- but I like the Sigma better, so i have put the Norman on the market. I like some Gibsons a lot, but not quite as much as the Martins I've heard -- again, all of these from Youtube videos, where I know the sound quality varies considerably.
I want to play all these guitars in person, but I'll have to make a 4-hour round trip to do that.