I definitely disagree with you on Universe of Energy. It's still one of my favorites at Epcot - way better than it's predecessor. I don't find it at all boring, nor did my friends I took for the first time last year. I forced them to leave the Magic Kingdom on our first day just so we could go on Universe of Energy before it went down for rehab for a week. Whenever we discuss Disney World now, it's one of the first attractions to come up. It was actually my friend's wife's favorite attraction! I personally wouldn't go that far (Spaceship Earth is hard to top), but I do think it gets unfairly treated here on the boards. Maybe when it's ultimately replaced with something dopey like Flik's Energy Extravaganza! people will realize what a great attraction Ellen's Energy Adventure really was.
On the whole, though, I agree with your other assessments. Carousel truly needs an update. I love that attraction, but the future needs to be futuristic again.
Oh, and Jungle Cruse is da bomb!