I could understand this question if it was brains vs. personality, or brains vs. a hot bum or something, but really? In today's society?
Sorry to tell you, but we live in an age where brains is brawn. Whether we're talking about a perspective mate or what I want for my own identity, brains is the answer. Who needs someone to open the pickle jar when I can use science?
Short Answer: Brawn doesn't affect your ability to be humorous the way brains do, which is the only thing that really matters to me. I want to spend my life laughing, not having to constantly buy tickets to the gun show.