I started a spreadsheet with a bunch of bands in it.
Haha, I love the geekiness of this

I'm really interested in why people like the music they like. Sure, the music you get into when you're growing up tends to remain special to you once you get older, but I'm still intrigued by what it is about that particular music that attracts you in the first place. I feel like the music you like is somehow related to personality or psychology, but I wouldn't have any idea why.
Are you sure those things you listed - musicianship, originality etc. - are actually the things that explain why you like the music you like? There's a psychological tendency to come up with an explanation for our feelings when we don't honestly know the deeper reasons behind them. Tight beats seem to be very important in music to me, and I also seem to like a lot of music that's strongly melodic - liquid d'n'b, trance, early east coast hip hop, but also (e.g.) Miike Snow or Tame Impala, even though on the whole I don't like guitar-based music. I dunno just rambling at this point