I think it's wrong to say QF don't deliver a superior product. I flew Jet*, Tiger,
VB and Qantas when I visited Aus - I was most delighted by Qantas. Putting the old birds manning the cabin and the older aircraft aside, it was a quality product. Sitting on
VB, I felt crammed and up close the aircraft looked poorly maintained. There's just something about being on a Qantas flight which 'feels' better. It feels that bit more spacious and like you're being cared for much better.
The only 'superior' aspect of
VB is the cabin crew ladies. Jet* was 'okay' and I sat on a Tiger flight just waiting to grab my life jacket.
Not holding much knowledge on either Airline and their backgrounds but in terms of customer experience, Qantas wins it in my eyes.