When it comes to the past attractions, I have to say Epoct has lost a few attractions that probably didn't need to move on with the future.
I can say WOL was a great pavilion to just have fun in, the hands on exibits did keep me occupied for a good time and Crainium Command was probably the hidden gem of not only to WOL, but Epcot itself. It was a really nice show that had a great sense of humor and never got boring to me.
With the Imagination Pavilion, even though I have never experienced the original JIYI. Looking at pics and videos of it makes me wish they just upgraded it in effects and didn't redo the attraction. Though hopefully the future looks bright for it from certain rumors, I just pray it get's back up to the charm and grace it had in it's original version.
With MK, I did enjoy Legend of the Lion King very much. I thought it was great with the introduction with Rafiki to the effect of the stampede scene. But I do understand why it had to go, costs of all the people that have to present it was probably a major factor. That and Festival of the Lion King took in the crowds the best.
Thankfully the change from Legend of the Lion King to Philharmagic was one of the rare moments where the new attraction was a worthy replacement. Philharmagic is hands down the best 3D show Disney has ever come up with IMO.
Sadly the change to AE to SGE is not the case. In fact it's a good example on how NOT to replace a original attraction with a francished character attraction. Losing AE hit me the hardest then the loss of all the other past attractions, that happens when apparently it was and still is my favorite attraction at Disney.
While I do know there are people that do enjoy SGE, I will deeply admit there is no way I can change my opinion of it. I did go on it with a open heart and mind but it did not deliver a good show. While the AA's were a vast improvement, they just can't hold on their own for a muddled storyline and weak execution. That and Disney overdid it with the promotion of the attraction. Shoving it down our throat's a good attraction does not make.
Now I do wish a video of Horizon's existed, since I really don't know much about it. While I do like M:S, I am curious on how good was Horizon's.