OK, let's assume you have an A boarding pass, so you get to board first and sit anywhere you want. Let's also assume that there are no scorching hot single members of the opposite sex seated anywhere on the plane. And no other special circumstances. Let's assume a 2 hour flight. If the length of flight affects your answer, please choose the most common choice, but elaborate in your response. You and a friend board the plane. Your friend sits down in the aisle of the first empty row he finds. Which seat do you choose?