In a Film.com blog, blogger Dre rates the 'rabity' of fanbases:
http://www.film.com/movies/story/the-five-most-rabid-fanbases/11597472/22494925
Which do you belong to?
5 - Ringers (Lord of the Rings, Tolkien)
4 - Trekkies (Star Trek)
3 - Whedonists (Joss Whedon - Buffy, Firefly, Serenity, etc)
2 - Twilighters (TWILIGHT Saga, Meyers)
1 - POTTERHEADS! (HARRY POTTER, Rowling)
Honorable mentions:
- Star Warriors (Star Wars)
- Losties (Lost)
- View Askewers (Kevin Smith - Mallrats, Jay & Silent Bob, Dogma, etc - View Askew)