I always love asking this question because the answers are always so unique to each person.
I love a lot of music, but a lot of my favorite albums or songs often have a few recurring themes or are in a certain genre, and I personally like analyzing my taste and asking myself stuff like "why do I like this so much?" As I've done this, I've noted that my favorites often fall into one or more of these:
Shoegaze and/or Dream Pop
I like warmth in music, and a lot of shoegaze is very good at having a warm atmosphere like in Citrus. Other times I a noisy assault on my ears with an emphasis on wall of sound, and stuff like Grandeur of Hair is perfect for that need. I love the feeling of a wall of sound washing over me and just enveloping me, and sometimes a dream pop edge is also a great addition.
This is mainly space rock, but I love a lot of space-y feeling things and I always have. I have a really big attraction to it, and I can't really explain why, but the idea of a cold vacuum of space just gets to me and makes me go "Wow, this sounds so cool and expansive and distant and I want to be there." Whether it's something sappy like Ladies and Gentlemen We Are Floating in Space, something a little more depressing and slow like Stratosphere, or something infectiously repetitive like Orion Awakes, it never fails to make me happy.
Southern and/or soulful hip-hop
I like vocal harmonies, soulful sounding stuff, and the accent is very familiar to me so it makes some of the rhymes feel a bit closer or special or familiar? Something like that. Anyway, things like Rodeo, Soul Food, and ATLiens fit into this and make me smile with the southern rhymes or the souls-y love.
I LOVE plunderphonics to death. I love the idea of taking little things out of pieces of other stuff and molding it into a totally new project with a new feel and theme and sound. Some of my favorites are Since I Left You (full album wasn't on Youtube) and Wildflower (also not on Youtube), Pharma, and Planetary Natural Love Gas Webbin' 199999.
You don't have to type out some big thing like I did, just tell me some of your favorite things in music!