Have an upcoming trip, LAX-HKG and chose 8A.
I actually like the even numbered rows better in Polaris, and typically choose 2A, 4A, 6A (all were gone).
Strange question, but does 8A have an overhead luggage bin? I seem to recall on another aircraft (772?) that it didn't (my imagination maybe).
Also, anyone know which door you exit in on UA152 upon arrival in HKG?