If you had bothered to read the opening post properly, you would have read that the award was for "World's Best Low-Cost Airline" - surely that tells you that QF and ANZ weren't under consideration.
aircraft,As usual you put your foot (lack of knowledge) in it .The award also gives J* the best cabin crew in the Australian region.They rank J* above QF and Air New Zealand,which are both full service airlines.
aircraft ,I think it best if you do some research before you post again.You made the same mistake when you asked who Jetstar Asia was.So much for your idea of what is going on.
Next time I think you should be the one thinking