I think they both have there Pro's and Con's! I will say that in some ways I sympathize with Jacob though, Bella Breaks his heart so many times, but he still loves her and cherishes her, he's there for her when she needs him no matter what, Edward leaves her and then comes back all jealous and moody about Jacob. Now for your real question, why are Werewolves better than Vampires.... Well I will say there is definately some up sides to having a HOT body cuddled up to you! And as handsome as Edward is, Jacob def. has the HOTTER body in more than one way!