Originally Posted by libertyuk

Via LAX is shorter than via HKG (to LHR), in Y class that is worth something in itself. 2 hours less on a plane. Tolerate the holding pen at LAX for that over HKG. Y on 747s has up to 34" seat pitch, better than 32" on 777s, but depends on seat choice (as they vary). If you are not tall, you may not care as the 777 has slightly wider seats in Y. 3-3-3 vs 3-4-3 doesn't have much in it really.