Is Rarity the most complex character ever to appear in a children’s show? No, not when you consider characters like Avatar the Last Airbender’s Zuko or pretty much the entire cast of Princess Tutu.
Is she the most complex character ever to appear in a show for children this young? As far as I know, yes. Yes she is. While Fluttershy is my favorite pony and probably always will be (unless they do an episode where she’s, like, a bigot or something), Rarity is the most fun character in the show to write about for this blog, by a wide margin.