Originally Posted by
aaupgrade
Actually in my case I will be traveling both BKK-SYD and SYD-LHR and will choose BA on one segment and QF on the other so I can experience both F products.
And then you'll have your own opinions. If your factors are sleep, food and service, then I'd go for QF unless by "service" you mean old fashioned more formal service. I just did a detailed comparison of BA and QF first products based on long haul (11+ hours each) flights last week. It's in the BA forum, and if I knew how to copy the link to the thread, I'd put it here for you. I called it something like "LHR-BKK in F, BA or QF?"
In any case, enjoy. They will both be great, though slightly different from each other.