Seat query help please. I have booked 2 CW flights LAS-LHR (departs 20:30) on a 747. Now they have stopped F they are offering the seats as CW. What would be the best for a couple - 4 or 5E/F in the front cabin or 63AB, 63J/K or 64A/B in the upper deck. I am 5' 3" and he is 6' 2". TIA.