6A and 6K are probably the best seats on a 777. They are more private and have more space than the other seats. You have to lean back for the window, but for a long-haul when you'll be sleeping it's no big deal. You're last to be served in that cabin, but again it's not a big issue. 11A and K are the same, but they are right in front of the Y section and veryone is going by you during boarding.