The 90s would be my pick too but they were actually my childhood years. I still had a blast in my late teens/early 20s but the 90s were a better decade than the 2000s in my opinion. The last decade before technology took over society but we still had home computers and video games growing up. We had the perfect mix of good toys and video games but still went outside and rode bikes down dirt hills, built forts, played tag etc. The 90s were also a great decade for sports, music, television.
The 70s were before my time but I would have loved to have grown up then too so glad to see people going that route. Had a feeling that would be a popular choice. Dazed and Confused is one of my favorite movies and have always had an appreciation for that time period as well as the late 60s