I would much rather be alone (sounds like a good opportunity to do that meditating I always think about but never do!), but I think for practical purposes I would pick the person I hate. Hopefully we could work through it and find some common ground, or if not, at least agree to work together. Seems like there would be a lot of survival things that you could do better on with 2 people, hate or no hate. Alone, I would probably starve (unless I can have the endless supply of pizza that I think I picked in another game like this.... was that here? If you were on an island and could only get one food for all eternity...?).