Divergent Book and Movie Fansite
You could base your answers on the book, or your moral values.
I would choose Erudite. they aren't bad on their own, it's just because of Jeanine that they're hell bent on running the government. Jeanine thinks that because she's smart she should run everything. So she brainwashes the Erudite and eventually the Dauntless. But tris saved the day at the end :D. Jeanine sucks, the rest of the Erudite dont. End of story
I think people are forgetting what the book (Divergent) was all about. You can't just belong (or favor) one, without falling apart. you need all of the characteristics to function properly as a whole. No one said it better then Tobias himself. You need to be selfless, brave, smart, honest, AND kind. so asking what faction is best, is destroying the whole concept of Divergent.