The whole idea of Teams is ridiculous. Readers of the series know how it ends and the folly of picking Teams is apparent. There was never any question Bella would wind up with Edward. Sure, you could pick Team Jacob for his hot body and delicious muscles, but picking Team Jacob because he and Bella make sense is ludicrous and here are 5 reasons why: (spoilers ahead)
1. Jacob is a werewolf.
It’s not so much that he’s a werewolf, so much as what being a werewolf in Stephenie Meyer’s world implies. At least with Edward, Bella had a chance to become immortal too and eventually this chance is realized. With Jacob she’d grow old and he wouldn’t even start to age until he could go long periods of time without shifting. If Bella hated the thought with Edward, there’s no way she’d stand for it with Jacob, especially when Jacob can’t change her into a werewolf too.
2. Jacob would imprint.
Another downside to the Jacob and Bella relationship is that eventually, like the rest of his furry brothers, Jacob would imprint. It might not be right away, he might have to wait for her to be born as with the case of Renesmee. But we’re assuming Bella doesn’t stay with Edward so the example should be Quil and Claire. That’d leave Bella alone… Jacobless and Edwardless, which would never work.
3. Jacob is too pushy.
Edward has his faults, but Jacob’s pushiness makes Bella extremely uncomfortable. She can’t handle it and she doesn’t like it. If a fist in the face doesn’t bring home these facts to Jacob, he’s clearly clueless and will continue in said pushy behavior (as he does in Eclipse manipulating a kiss at the end of the novel) until he ultimately pushed Bella too far and eventually away.
4. Jacob is beyond reckless.
He’s not worried about his life and safety and takes unnecessary risks. It might be thrilling at first, but over the long haul it’s not what Bella’s looking for. If you look at his behavior at the end of Eclipse you can see where his foolishness gets him – critically hurt and even then he doesn’t take it seriously. Bella would be constantly looking out for him in a manner similar to how she looks after her parents. She needs someone like Edward who’s willing to tone down his wildness and to act like an adult.
5. Jacob doesn’t get it.
Love means something else to him than it does to Bella and he simply doesn’t get it. He’s in the middle of puppy love, not adult love when it comes to his feelings for Bella. Why else would he run off and face down a hoard of Newborns instead of staying with Bella when she clearly doesn’t want him to go?
Conclusion: It’s as clear as the snout on a werewolf’s face that Bella and Jacob never had a shot of everlasting and true love.