I'm so glad the fics have changed your mind on those guys. The points you mention that put you off them are mostly the points that made me go 'oooh, there's room to work here'. Oh, and I also like creepy amoral sadists in fiction.

(Not sure how to link to everything at once or to warn for everything at once, either, I feel awful and self-promotional doing this, but they're all listed here, complete with warnings).