I just make a list of the songs that I loved the most during a certain week. I try to order them from the ones who affected me the mpst to the least. Ironically, this is the only page that doesn't have a special music button.
As you can see, a lot of old songs. A lot of my love to 80s music stems from - not nostalgia, although it is a contributing factor (just look at this website) - but from how much it reminds me of my own music. Yes, I make music and write songs, terribly. It's just that the music industry nowdays is shifting away from complex lyricism and composition to professional sound design. It would be easier for me to beat a Guiness World Record than to make a better sounding song than even an amateur producer.
Now, notice all the intellectualizing (is this even a word?) going on. Practically speaking, what affects us the most in a song is how it sounds, not what it says, or even represents. So, I guess, I can't really know why I like this music. I can't even say they're my favorite genre of music. Maybe right at this instant, but, ultimately, I don't think I will ever be able to define my music tastes.