When looking at the available options for extra legroom seats on the 77K:
Which of those is best/preferred? Looks like none of the extra legroom seats have a window. Are 40C/H getting bumped into a lot since they jot out into the aisle or not an issue? The seats in row 43 seem to have quite a bit of empty space in front, but will lavatory lines form there frequently or is that a minor issue?