Being a history major, this question has often come to my mind, and two eras pop into my head right away.
One, the 1950s, when life was simple, and people had a greater degree of family values. Also, there were less social problems such as divorce, and society was comfortable.
Two, the roaring 1920's. Things were prosperous then as well, life was good, and many inventions came out, like the radio.
I have done extensive reading about both these time periods, and I feel either one would have been a great time to be alive.
Mitch