Hi Jess. Just to clarify [OCD hat on] it's Emirates and Qantas (there's no U in QANTAS). [OCD hat off]
I think the proposition is far from reality, maybe perhaps closer to imagination and pure speculation. EK is NOT getting in bed with AA especially when EK's main 'rivals' are: EY is already a partner, and QR will soon be part of OW.
So yeah. Your best bet is EY as it has a comparable F product to EK and even beats it in terms of catering and seat comfort from my experience.