Gross generalization. I’ve done 5 round the world trips on OneWorld carriers per year for the last four years including BA, CX, QF, IB and LAN and my favorites are BA and CX, even though I’m Australian. I choose BA regularly over other carriers for the end to end completeness of their offer and their general reliability. Attitude I find to generally be good, if not the extreme of Asian service. SQ is good, but overrated, particularly when you see their ‘regional’ product which they fly SIN-Oz whilst all the other carriers fly their long haul J product.