I choose A.
I prefer the more erotic tickling. Slow, teasing, (with surprise rapid-fire strokes thrown in.) Feathers drive me wild! Not a fan of rough tickling. It hurts!
I'm going to have to go with B. I'm pretty self-conscious about my body, so I don't think I'm quite ready to show it off, yet. :blush Also, I'd like to see what somebody could do with their own hands, rather than just teasing me with the feathers. 😉