Personally, my taste in music varies so much that sticking a pin in it would be difficult and making a generalization would be too vague.
I am currently into Indie types of music, music that isn't popular by mainstream standards, but can acquire avid followings. Of course, whether they do or not isn't based on my personal listening habits alone.
For example, take a "group" called Two Steps From Hell who isn't a group at all but a recording/mixing company that creates soundtracks for movie trailers and movies themselves. The music is both ethereal, hardcore, dramatic and subtle, and in practically in every trailer or movie commercial you have seen. Their style and quality garnered them a cult following, including myself, and they released their first album on Itunes a while back. I suggest you check them out.
What kind of music do you suggest? What are you into?