Why Oneworld airlines (BA,QF) focus a lot more of using SIN as the stopping point than HKG?
They should use HKG as the stopping point rather than SIN for better cooperation with CX, like using CX lounges in HKG, massive code sharing with CX for European routes, to add more European destinations like AMS, MXP, DME (flights operated by CX), and to reduce competiton with *A airlines like SQ.