Interesting discussion---some people like some kinds of segments, some don't...
Me, I'm an all-around kind of guy. I pretty much like everything. In fact, one of my favorite things about it, from my adult perspective, is the fact that it's an utter mishmash. (As a kid I just took that aspect for granted) Every graphic look you could think of, every kind of visual experience, looking left and right, up and down, at everything and anything, in this world or that world, real or imaginary. Frankly, it's a mess. A total, absolute mess. And I love that.
I'm probably bad at trying to explain this, but this is why the mid-1980s are probably my favorite period. Having now seen some '70s episodes and knowing well what '90s and '00s eps are like, the mid-80s have this warm, fuzzy feeling of what I can only call "settled familiarity." If SS was something fresh and new in the 70s, by the 80s its roots had settled and its many components had become firm parts of its overall landscape. We tend to forget that the program was already very old by then--15 years is ANCIENT by television standards--and it was rather set in its ways at that point. It was a goulash of stuff that was still being cranked out, and stuff that had been floating around already for 15 years, and the catalog had become huge. One minute you'd have a just-taped Muppet skit, the next you'd have a 10-year-old film about a Kentucky mailman. And this was before they'd really gotten rid of much material. Most of it was still there. Played to death and still going. Because it was juxtaposed with newer things, it never felt stale. And somehow, despite the fact that all the stuff came from many different minds and sensibilities, it all melted into a unified voice.
The '80s weren't as fast, fresh and funny as the previous decade, but they were warmer, I think. And part of it is that "settled familiarity" aspect that slowly dissipated during the '90s as more and more of the original flood of material was filtered out. I don't think Sesame Street will ever present that kind of extremely varied experience ever again.