Robin. Trust me dude. If you go with Alice, you will never know for certain if she is into you or is just into getting pickle tickles. Robin will be better in the long run because when you do things with her for the first time, you will know it is because she thinks you are special.

As for Alice, why go for her know if you never really liked her anyway. Also, if she is into you and you sleep with her just to get laid, once she figures out that is all it was about, you are going to have a major psycho bitch on your hands. Hell hath no fury like a woman scorned. Oops maybe that should be in the spirituality forum.