Hercules:
I admit that the plot is a bit formulaic but the characters of Phil, Hades, and Meg more than make up for it. Also, even though the movie pretty much ignores Greek mythology except for the characters, I love all the little references to it like Phil warning Herc not to hit his head on the prow of the Argo and complaining about Achilles heel.
The Hunchback of Notre Dame:
Claude Frollo is my favorite Disney villain and I really like how the movie uses more mature themes than most Disney movies like lust, racism, and religious bigotry. And the Hellfire song is easily the best villain song.
I think Wall-e is vastly underrated. I thought it was brillant and very romantic.
I also feel that Chicken Little doesn't get any respect; but I really liked it.
Mine are from the '80s but Oliver and Company and The Brave Little Toaster are very underrated in my opinion. And it's not from the '80s but I also liked Dinosaur a lot.
I didn't know Hercules was underrated I thought it was popular/well liked.
Gnomeo and Juliet!
The characters are so cute and they could have put out a lot of merchandise. This DVD was available at many of the check-out counters in the DLR as if they were trying to promote it. I think it would have done better if there were plush characters, action figures, etc... The soundtrack is fabulous and the story is really amusing. And with the Disney references in the movie, that would have generated more interest in merchandise and would have built more momentum for the film.
I didn't know Hercules was underrated I thought it was popular/well liked.
like 90% of my favorite Disney movies are the underrated ones or were at one point underrated before a relaunch.
Oliver & Co.
Ducktales the movie(not many people remember there was a theatical movie)
Black Cauldern(one of my favorite book series, I wish Disney would dust off their copyright and remake the franchise and do it fully right this time.)
Emperor's New Groove(also Kronk's new Groove)
Robin Hood
Tresure Planet
Hunchback
Hercules
and for about the first decade of it's existance Nightmare before Christmas. I remember seeing that opening weekend as a kid and not many people knew about it until it relaunched and showed up at Hot Topic.
Hook!
I thought it was underrated when it came out; they've been playing it a lot on BBC America recently and I think it's better than I remember. I think Dustin Hoffman was brilliant as Captain Hook and so was Bob Hoskins as Smee. I thought my daughter would find it too slow in the first half and not like some of the characters being different from the cartoon but she loves it and won't stop watching it.