Evolution Again

Here we come to an interesting question: Do the superior pass along their genes more reliably than the inferior? In primitive tribal societies do we observe that the brighter have more children than the not so bright?
Do the most fit men breed with the most fit women, or with the most sexually attractive? As a matter of daily experience, a man will go every time for the sleek, pretty, and coquettish over the big, strong, bright, and ugly. I mention this to evolutionists and they make intellectual pretzels trying to prove that the attractive and the fit are one and the same. Well, they aren't.
(5) If intelligence promotes survival, why did it appear so late? If it doesn't promote survival, why did it appear at all?