I enjoy the Shire post-quest fics too, but then I've never minded depressing. I guess I read less of them these days just because I read so much F/S than I used to. Among the big men though, yes, I love it, when there's already so much trust between Frodo and Aragorn, or when you're getting to see the changing relationship between Frodo and Faramir, or Frodo just getting to know Eomer, it's all lovely. And I love happy MT AUs that make you think it could have gone better for Frodo (after some initial difficulties, of course, because what would a fic be without them?) if he'd tried to make it work somewhere other than in his old home.