User blog comment:OnePieceNation/Which of these series wouldn't you mind getting a crossover with Hunter X Hunter/@comment-10145707-20130701181115

Gundam

Ouran High School Host Club

Pandora Hearts

Saint Seiya(maybe)

Full Metal Alchemist

Vampire Knight

Uta no prince-sama

I can't htink of any other at the moment but if I remember other anime series, I'll tell you.