Who will win: Pain vs Sasuke?

From the way you're saying things, it sounds to me like you think Sasuke doesn't stand a chance against Pain. But somehow, I agree with you. Sasuke is an amazing ninja, but so is Pain. And besides, it is said that the Rinnegan is the most venerated and powerful of the 3 dojutsus (sharingan, byakugan, and rinnegan). But still, you can never tell what could happen.