I know, It's ridiculous. But overall, Atlantis is terribly underrated. She probably just isn't popular enough. I can't understand why though. She became my favorite right after the crystal chamber, and the volcano scene sealed the deal. I couldn't understand why other people couldn't find that to be as awesome as I did.
Atlantis has less appeal for girls than the other flicks, I'd figure, seeing as it is by far the most actioney of them all and has no songs or anything. Not much Disney in that one to be honest, but I personally liked the film a lot even if it doesn't have the traits of a truly great Disney flick.