Qantas also charge its own elites for the access to extra leg-room and upfront seats in Y.
(only exception to this is for QF Platinum1 members - a level above Emerald (requires approx 3x the flying of Emerald)
http://www.ausbt.com.au/qantas-to-se...on-airbus-a380

I believe the oneworld benefits extend to provision of seat selection, not that all seats be made available (without charge)