Originally Posted by
sinecure
So to recap my initial question, I'm claiming for AS miles on CX as that's the program that I am invested in the most. But from a position of taking CX in YVR-HKG-HAN & then again SIN-HKG-YVR, are these airports where priority check in and boarding are useful.
It will be useful only if:
1. You will receive pre-flight service (like drinks...)
2. You have carry-on only and you really need overhead space.
3. If you want to SHOW OFF how important you are

(To be honest, I did it once when I flew AC YVR-HKG as a *G. Then all other people jumped from the Economy line and got kicked away by GA.
Otherwise, I don't see boarding the first will have the difference boarding the last (Remember this is no WN that you do have seat assignment).