Back to the thread poster's query, United with an anywhere USA award to OZ for 90,000 in Biz versus 125,000 on AA or 220,000 on QF is a no brainer.
Qantas charge
140,000 miles RT just to UPGRADE, and bear in mind, just to upgrade only SYD-LAX. Nonsense stuff.
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Glen ~ From exit row seat 15A on a United 747-400 near you SOON!