Like every economy is cyclical with it's good times and bad, now is the worst of my lifetime. That said, I'd have to say the 50's were some of the best years of growth this country has ever seen after WWII and the post depression years. The 60's were laden with civil unrest and the most wasteful war of the 20th century, but the economy was sound. The 70's was in the throes of a huge inflationary cyclone thanks to the peanut farmer and gas lines were the talk of the day. But, I'd have to say for me and the country, IMHO the 80's were the best with new innovative economic reforms, across the board tax cuts, market deregulation (got rid of price controls) and a monetary policies designed to curb inflation so the market can do what it does best, thrive, create jobs and spur consumer confidence.
I hope I didn't go too far here. I don't intend for any of this to be political, just stating the obvious.