Hmm... I don't think fans will fit neatly into those boxes. You're bound to have arms and legs sticking out everywhere.
My preference is for Comedy and Horror/Suspense. You'll find any number of cute funny anime in my collection, yet also find dark and brutal anime right along side them. Similarly you'll find American Pie and The Life of Brian among Dawn of the Dead and Hostel in my non-anime collection.
Yet even if you made a box for me that was half Comedy and half Horror, you'd still find me dipping hands and feet in everyone else's boxes. I like some deep stuff, some classic stuff, and some action stuff: it's all a matter of quality and taste.
If an anime good enough, I could care less about the genre.
