Originally Posted by hauteboy
Qantas is pretty easy to earn Plat status with F, with their Status Credit earning table,
you could need as little as 12000 miles (10 flights of ~1200 miles in First) to earn Plat status.
But the burn rate for QF rewards are very high compared to AA.
Also need to consider what emerald does for you. AA Plat (sapphire) get 100% bonus miles but you need to be QF Plat (emerald) to get 100% bonus. QF Gold (sapphire) only get 50% bonus.
All emerald's are not equal.
Generally the airline you fly the most is best, as the airlines own high status ffer's will be first on list for upgrades & rewards flights.