I wanted to ask for some input. I am looking to use AA miles to do a 25k bracket One World Trip in J class, hopefully in April or May. The following are essential destinations, starting in CLT: MEX, SCL, EZE, MEL. The following would be potential additional fun stops: LPB, AKL, SYD. I am AA Platinum.

My main question is getting from South America to Oz. Based on J service and likelihood of actually being able to get an award ticket, would I be best to try SCL-AKL on LAN and then pick up QF to MEL? Or would I be best to try EZE-SYD on Qantas and then go to MEL? I have significant flexibility on dates, but thought others might have some input as to which route I should explore first, especially considering which product is better for the long haul (QF or LA) and the potential availability.

Many thanks!