When they go as low as they can, the competition will be decided by the cabin staff on hand. I flew on QF570 Per/Syd last Saturday. It was as comfortable as one can expect, jammed into an EY seat half way down the full cabin of a B737-800. Can not complain about the service which was very professional in every respect but did pity the F/A in my section, a very pretty face and kind but having trouble walking straight in the narrow aisle due to a rather wide empennage. Virgin Blue has a distinct advantage in this respect and so will Virgin Atlantic when they start operating into Oz.