it's a small world - there's a horrible attraction because you can see the drop ceilings and can tell the fact that it is basically a big warehouse. Haunted Mansion has those horrible exits that take you out of the theme. just awful. What were the imagineers thinking? What was Walt thinking when he did small world?
Honestly, no attraction is perfect, and there are trade-offs and shortcuts in every single attraction for the most part. Disney still does it as good or better than anyone else, and different levels of attractions require different levels of theming. You're not going to go as all out on a C ticket as you will on a mega e ticket like rise.
FEA, Everest, Railway, Rise, and FoP are all excellent attractions for what they are trying to do. FEA is in the wrong park but it is a solid C+ Ticket and as good as any classic Disney dark ride.
Now, when is the fountain going to be done for the entrance?