I agree. However, I have a slightly different most overrated.
MK: Peter Pan's Flight. I like it but I don't get the crowds. Probably related to capacity.
EPCOT: Maelstrom/Frozen. Just a so-so ride. I haven't ridden UofE or Mission Space and cannot compare them.
DHS: TSMM. Again, a decent ride but I wouldn't say that it is a "must ride".
AK: Tough. Probably Everest. It's fun but not the best coaster by far. With Yeti not working, it loses even more appeal.
Rides are tough to rate. I would be very curious to see which rides have the most re-rides and which do not.