Work is sending me to HK for a year. They will pay for a return flight every 3 months (and the outbound and inbound of course).

Unfortunately they will only pay Y - but I can choose my flights and airlines.

I am OWS (RJ GS) and have about 300k Avios.

So my questions are:

- what is my best choice of carrier to try and get an upgrade to J (ideally using Avios but cash if necessary)
- what is the best choice of FF scheme to credit to given the above?

Other info...
- I might travel via Dubai sometimes (happy to go via DOH)
- I've always had a soft spot for QR given how much I like their product, I've always managed an Avios airport upgrade - but I know that this is recently become a lot more expensive, and it also seems that QSuite between DOH and HKG is very rare
- I will be travelling a lot short haul from HK for leisure on my own dime - I guess with Cathay