It is interesting that the most compelling and most beloved attractions were non-ip based.... Space Mountain, Alien Encounter, Carousel Of Progress, Timekeeper, Small World, Haunted Mansion, Hall Of Presidents, Country Bear Jamboree, Big Thunder Mountain, Pirates Of The Caribbean, Jungle Cruise, Enchanted Tiki Room, The Original Living Seas, Soarin' The Original Imagination attraction, Spaceship Earth, Horizons, The Original World Of Motion, Maelstrom, Expedition Everest, Kilimanjaro Safaris, and Dinosaur ( not really a recognizable IP)...
I don't mind IP when it fits... like Rat in France...but I really dislike the trend of only building attractions based on a franchise... I think we all loved Disney for their ability to create amazing experiences and attractions that were usually completely original experiences and characters....