At the Studios, I miss the hunchback Show and Who wants to a Millionaire Paly IT!
At AK, if I was there today and given the choice, i would go see Tarzan Rocks over Nemo. It has more meaning to me on a personal level. I rode the River Boats when it first opened, and I regret that it closed without being developed further. I miss the origianl storyline at Kilimanjaro with pochers, guns, and jeeps.
I experienced Sea Base Alpha only once. Nemo seemed cool the first time I rode it, but I think the original has more staying power. Wish we had it now. I only experienced Wonders of Life once, and only parts of it at the time. Wish the pavilion was still functioning, if nothing else than to get to see what I missed, or give us all more to do in Futureworld.
Alien Encounter and Timekeeper. I do enjoy Monters, Inc, and I believe that today's average guest does too. The frequent visitor can get a different experience when re-visiting MInc too. But that doesn't stop me from missing Timekeeper. As it stands now, we really only visit two attractions in Tomorrowland regularly, and ride peoplemover when we need a break, or to take up time until FP comes up.
I miss an entee that used to be served it the resorts quick service. It was a Chicken Club Wrap. It was delicious.
I miss free Valet service for DVC members.
I miss e Ride nights. What was it $15? It was a much better value than "free" Evening EMH or $50 hard ticket events.
I miss a dining plan that included tip and an app. I miss a dining plan that made any financial sense to purchase at all. Last year, I could break even on the QSP, but it doesn't loot that way anymore.