Discworld - I just love stories from Terry Pratchet and there are lots of them (40 books).
Before Disney it used to be Star Wars because it has so much potential for any kind of story. You can go super science fictiony without encountering any kind of fantasy elements. You can have a western type setting, dystopia, magic, drama, comedy, any weird combination of them all.
Pern. Just the quirk of it’s physical environment that I don’t want to give away, and the way people lived because of it felt very unique to me. It was so integral to the stories, too. You often see unusual environments in fantasy and sci-fi, but often only while setting the stage.
One of the things I like about the Pern universe (similar to the Wool universe) is that you start with a technologically advanced society that (for whatever reason) loses knowledge, and the way that hidden history impacts society over extended periods
That too!
