I grew up in the 80s and 90s (went to college in the early 90s, I remember well when Nirvana was new and Smells Like Teen Spirit was all over the place). I never liked 90s music that much, and prefer late-60s through early 80s music, even though it was either before I was born or I was too young at the time to know about it.
I'm sorry, in my opinion, music has just gotten a lot worse in quality over the years. And the other poster's post about ClearChannel taking over all the radio stations nationwide in the late 90s, I think, is good evidence that it's not just my biased opinion, the environment and the music industry has really changed for the worse. The industry was run in a very different manner back in the 70s and 80s, and it should be obvious that that's going to have a huge effect on the music.