I was almost ready to book my AONE3 and then had a slight doubt. Which airline is better in First Class LHR-HKG? I was thinking CX, but then I thought that BA might be better. I will have a long segment in BA's First (YVR-LHR) and a long segment in CX's First (HKG-JFK). So, which do you think is better and why?

Thanks,