The best fanbase I've ever met people from was the Moi dix Mois fanbase. For the most part, they were intelligent, mature, kind, calm, open minded, and very informed. Most of them were on the darker side of things (gothic or close to it). I don't know why, but most of them weren't the typical screaming crying immature Mana fangirl/boy. I must have met 600+ Moi dix Mois fans from all over the world during my years as a Mana Guild owner on Gaiaonline, and it was always the same type of person.