Agreed with NM.
For me, on balance, QF, BA and CX are all about equal in J, but for different reasons. You need to figure out your priority:
- If it is sleep, then BA is the best (can't beat horizontal)
- If it is food and wine, QF is the best (BA by far the worst)
- If it is for Asian food, CX is the best
- If it is entertainment, CX is the best (can't beat AVOD)
- If it is the lounges, CX is best
- If it is the service, CX is most consistent, but both BA and QF can have excellent service depending on the individuals (e.g. flew LHR-LAX on Friday on BA J and got the best service I've ever received on BA, then jumped onto QF12 to sydney in F, which was way worse, and dare I say it the seat was less comfortable for sleeping!).
A lot will depend on whether it is a day or night flight, and whether you want to spend the majority of the time sleeping. This is how I select the airline if I have a choice.
Jon