Yeah. Anime combines bad end and good end, then goes completely WTF topsy turvy with the sequel.
Also, I pick Kitami because for all her evil bitchcraft, she has an incredibly sorrowful and sympathetic backstory.
I would want to help her defeat the super powerful demon rather than have her turn to the same evils that victimized her in the past in order to survive. She just wanted a chance to live her own life rather than having everything decided for her!
Too bad that all the holy powers you see in Bible Black completely suck ass compared to the unholy ones. But maybe you could save her... with love?
It's always love, goddamnit. Come on!