No offence, but, it's not rocket science mate.
A few extra KG's, above QP, SG and Silver; which, l have never used even as a PS. I set a personal record when l when to BKK last year, 10 days, 5kg, checked baggage.
F Class check in, when travelling in INT whY
F Lounge access, if flying Int (or DOM, if you can get a flight through the INT Terminal).
QP Access even when not travelling. J Lounge when travelling whY DOM.
Partner Gold (which you have).
Double Points (BUT, only on QF, BA and AA).
Guaranteed 2 whY seats on any flight (but, the fine print still has a ++, (++ With paid Full Economy tickets for up to two people, including the Platinum member, on any Qantas operated flight with a Qantas flight number (excluding non-jet QantasLink services) and when booking before midday on the day before travel. Facility may be restricted due to operational constraints.) And let's be honest, if you can get it, PER-SYD 24/12 for 2 FULL whY would be pretty expensive.