The Vietnam Airlines Airbus A350-900 carries 305 passengers across Business + Premium Economy + Economy. Power is available on this aircraft. Every seat is rated below, so you can see which have the legroom, the window alignment and the quiet — and which sit next to a galley or lavatory.
The seats rated best on this map are 16A, 16B, 16C, 16G, 16H, 16K. Another 47 seats are rated best or good. Look for 29 extra-legroom seats for the most room.
Seats rated avoid on this map are 26A, 26B, 26C, 26G, 26H, 26K. Another 24 seats are rated avoid. These are usually the back rows near the galley and lavatories, or middle seats with no window or aisle.