I would say that out of the plans, if you were to move, the AA plan would be the best for you.
Although there is only 50% earning on the cheaper fares, there is a minimum earning of 500 plus any status bouses you may be entitled to.
I don't know what your travel profile is, but seeing that you have QF Gold, you may well be able to maintain AA Platinum status which will give you 100% bonus making your minimum mileage earning 1000. on longer flights you would be getting 100% miles rather than 150% as QF Gold. Given the price of award flights , it is still better . Btw, in case you hadn't realised, for every 5 PER/SYD trips you do, you actually would earn enough for PER-NZ award since AU/NZ are classed as a single area
70k for J to Asia, thats a bit mean given that 90k will get you J to Eggland and Europe
Dave