Any classic/must-watch shoujo anime?

Must watch shoujo must be: Tonari no Kaibutsu-kun; Kaichou wa maid-sama!; Kimi ni Todoke; Vampire Knight; Ao Haru Ride; Sukitte li na yo; Lovely Complex; Skip Beat; Watashi ga Motete Dousunda; Sailor Moon; Cardcaptor Sakura; Tokyo Mew-Mew; Diabolik Lovers; Hatsukoi Monster; Orange. ^^