50's,60's,70's,80's,90;s~which era do you think had the best music and which one do you think had the worst?

Seventies was extremely tasty, if you would excuse my expression. I love Led Zeppelin, Black Sabbath, Iron Maiden, and Clapton, and everything classic rock, and the seventies had some damn good ones. I know that some of those started in the sixties, but early sixties, really. I don't really have any dislikes, but the nineties started to grow some crappo punk and grunge bands.