The Rescuers is a fine film, and its sequel is enjoyable too.

Medusa is a memorable villain with both threat and silliness in a nice, balanced mix, although it's kinda terrifying to think that Medusa's lead animator Milt Kahl based her on his ex-wife. The cave scene also gets a mention for being so memorable and one of those truly frightening Disney scenes for a kid to behold (well, at least it frightened and fascinated me).