Nice question, one I've thought about a lot over the years.
As I long ago lost any interest in making music for any sort of fame or fortune (fuck me, I used to be in some desperate bands), I only play something I'm interested to hear...and I want to hear something with the beauty and don't-know-what's-coming-next of some Genesis, the about-to-fall-apartness of Guided by Voices, the dynamism and 'we don't care whether you like us' of some punk, and some obtuse lyrics/poetry.
Fortunately - you knew it was coming - I found it with a couple of friends, and we've been playing to absolutely no critical acclaim, and complete public indifference for 13 years now, and I love it. We've just done something that hits my buttons above,
Disconnected From My Bed, so I'm in the position of wanting to listen to 'myself' every day, and it sating me. Which is a bit surprising, and may be the start of an outrageous narcissistic disorder...