I am truly undecided. Jacob has a point in one of the books he says something like, if Bella never met Edward, her and Jacob are meant to be. They are like soul mates. If I were in Bella's shoes, I'd do the exact same thin she did in Eclipse. She couldn't decide because they are both amazing guys. Well, neither can I. I am Switzerland.
Edward is so much better for her! He loves her more than anything else in the world. And she feels the same way. They are perfect together. Bella with Jacob, I just can't see it. I mean, where would Edward be without Bella!!!