Those damn gaming forums.

Well, I think your natural brown color fits really well with your face. Given the three options, I would prefer that one. Have you considered dying it a darker brown?

As for length, hey, you've got really nice thick hair, might as well enjoy it! If I were you I would consider cutting the ends maybe about an inch so it's still long but frames your face all around. But that might be something you might want to do when you're a little bit older. Seems like a lot of guys in their teens like to keep their hair long.