80's music wins hands down..Of all the decades I've been alive, music-wise the '80s were the worst. Rock had run its course by the end of the 70s with punk. Everything after that was just repeating what was done before.
MTV ruined music, because it ceased to be something you listened to and became something you watched. Bands were signed based on how they looked, or which video producer you could get.
http://www.music-news.com/news/UK/32865/news
I'm split on MTV since it was transmitted to many countries so that people can enjoy music.