For:
-Books
-Games
-Movies
-TV shows
IMO:
-Books: Fantasy
-Games: Tie
-Movies: Sci-Fi overall (but LOTR are my all time favourite movies)
-TV Shows: Fantasy
-
Fantasy for all of them, except for Movies where I'd say both; because Alien (And all it's related movies.). That's the only Sci Fi franchise I'm a huge fan of though, and it's relatively low Sci Fi, which I much prefer because higher Sci Fi is usually really silly in my opinion (Think Warhammer 40k..). And I'm not half the Halo fan I used to be, so that isn't influencing my choices.