T_rex, for row 18 on the 77L do you find a big difference between 18AB and 18 DEG? the person who would be sitting there is 6'2". There are 3 adults and one child we are debating 18AB, 19BC or 18AB, 19C and 18D. I read 19C is also a preferred seat with more legroom. We just didn't want the child sitting across the isle be themselves