Hmm, I've been thinking about how to respond to this thread, and it occurs to me that simply getting into the whole audiophile world, as I have just in the last three months, has had its own effect on my listening habits.
Leaving aside genre for the moment; I have been craving, and listening more to, well recorded music. Stuff that has interesting dynamics, bass I can feel, texture in the string instruments, immediacy in the vocals, all that stuff. So I go more to the stuff I have that scratches that itch. Whereas before, I just wanted to hear certain songs, or get into the vibe of a certain album or artist for the performances and compositions, the grooves that I liked, the concert recordings that I worship as paragons of musicianship and soul. Now I find myself listening less to, say, one of my all time faves, D'Angelo and the Soultronics live in Stockholm (2000), not because I stopped loving it, but because I have it in a fairly low-res format, and low-res or bootleg quality is just not what I want to hear right now.
Also, I'm listening to less classic rock than I used to, because my current home system doesn't seem to do it very well. Simple as that, really. (I like it better in my car, where I can crank it and it's credible.)
On the other hand, certain albums like Erykah Badu's Baduizm Live (1998), to which I didn't listen regularly before I caught audiophilia, the recording quality has just hooked me, and I listen way more. The songs and performances are no worse or no better than the D'Angelo concert, but the recording is so much more satisfying. And her band is simply laying down grooves- drums, bass, keys, three backup singers and Erykah. But oh man, the sound.
Which brings me to my last point. For me, it's always been about groove and soul. In one way or another it's gotta groove, and there's gotta be a soulful intention and communication. That doesn't mean I just listen to soul music. Foo Fighters groove. Bjork has soul. Dave Holland definitely grooves. Radiohead, tons of soul (and groove, no doubt). I have soulful electro and grooving bluegrass. Horowitz in Moscow oozes soul! You get the picture. But my favorite artists have both in spades. (Notably Me'shell Ndegeocello. If you don't know her music (and there's a lot to know), google/spotify/mog/whatever her.)
So that's my story. BTW, I gotta put in a plug for services like Spotify and Mog. These are amazing tools for discovering new music. You can listen to a whole album once, five, ten times, and then be ready to buy it and get the resolution that you really want. I stream it to my system with Airfoil, and it's opening up worlds of stuff for me right now. It's one of the most fun parts of this hobby- all the new music!