Just a quick suggestion free101girl...
(NB: click on the bolded words for pictures)

If you can, and the schedule permits, fly QF81/82 SYD-ADL-SYD (operates thrice weekly SYD-ADL-SYD). The aircraft that operates these flights is an A330-300 that features Skybed and AVOD. While the flight isn't the longest, the A330-300 is much more comfortable than the 737-800 (Millennium J seats) and 737-400 (Convertible J seats) that also operates this route.

Avoid the 737-400 between SYD-ADL-SYD if you can...

Hope that helps...

Regards