Again I would say they are only limited if you insist on flying QF metal vs EK. Which there is little reason to do given Y is Y, Skybed is a generation behind now. Y+ is another story and to be fair, F probably a different discussion depending on personal taste.
I always considered the service and food on QF to be superior to EK. Also, you could upgrade using points on QF from Y to J, or J to F. You can't do that on EK metal. Further, the new MEL routes are using the new Dreamliner, so no longer the old Skybed.
I guess it all comes down to personal taste!
