I'll apply as a contestant again, of course!
Final Fantasy (Anything about Final Fantasy)
Shonen Jump (Anything from a Shonen Jump manga: http://en.wikipedia.org/wiki/Weekly_Sh%C5%8Dnen_Jump
Post-Apocalyptic Anime/Manga (Any anime or manga with a post-apocalyptic theme)
Trading Card Games (Yugioh, Magic, Naruto CCG, even the more obscure Star Wars TCG and .hack//Enemy)
Whoverse (Anything about Doctor Who and its spinoff, Torchwood)
Portcon Guests (Anything about the guests at Portcon)
Potent Potables (Anime and Manga questions relating to the subject of alcohol.)