Conundrum. Discuss. Who would YOU kill?

I would kill person 2. You can't kill the female because she is needed to repopulate the earth. And Person 1 is more important that person 2 because of his intelligence. In the grand scheme of things, looks don't matter. Also, hopefully the babies of person 1 and person 3 inherit his intelligence, because when they have to mate with each other (you know, to repopulate the earth) the children are going to need all of the intelligence that they can get because their babies will have problems due to their too similar genes.