See, if I were to do a deep dive into the books I read and why.. I'm mostly a fantasy guy. Not because D&D, though I do play (and run games). Lord of the Rings for me, while it absolutely did define the genre, it made mythology more accessible--I'm the guy who did his senior research paper comparing and contrasting Greco-Roman mythology with Norse mythology--and I love that about it. Malazan Book of the Fallen, now there's one that has it all. History, characters, worldbuilding, plot, characters, plot, worldbuilding, more worldbuilding. It was written by an anthropologist. Highly recommended if you've not read it.
Wheel of Time though is a whole 'nother level for me. Personal reasons, won't bore ya.
Sci-Fi. Oh boy. Dune is king here. Don't get me wrong, I absolutely adore Rendezvous with Rama, Chronicles of Pern, most anything by Asimov... list goes on... But Dune is just so... massive. Like, the universe is epic in span and scope. I do not like the David Lynch film. I have mixed feelings on the production photos I'm seeing for Dune 2020. But yeah. Dune. Also a massive Trekkie. Like, Way Huge. Just started watching Voyager for the first time (gotta remember, I didn't grow up in the western world--so while I know about a lot of TV shows, some I have to catch up on). DS9 is my favorite of that. Babylon 5 is better.
Will have to check out Westworld. I loved the movie. Found the book... eh...
But yeah, with books, I'm Fantasy First, Sci-Fi Second, Historical Fiction Third (I love Anne of Green Gables). Bit rambly there. But then again, you lot are probably used to that by now. I'm kind of ADHD/stream of consciousness. Can't help it!