I personally like to see a little more effort put into questions.
EK should be obvious. Go via ADL or PER or BNE if availability so dictates.
EY will also give you a free transfer from AUH, so is worth considering.
Then there's Lifemiles opportunities such as SYD-DEL-DXB on AI or MEL-SIN-BKK-DXB on SQ and TG.
Another option if no award J seats out of Oz (common) is get to BKK, HKG or SIN and go J (or F) out of there, you'll find more seats out of those destinations.
Really, there are two alliances - OW and *A. I would use points/miles in an airline which is member.
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Not to forget skyteam.
Singapore, Emirates, Qantas, Thai, Air India, China Eastern, Cathay, Korean, Air China and Qatar will all get you from Australia to Dubai.
Could the EK flights accrue QF miles/SCs?
You will receive miles and SC's if booked on a QF flight number.
Which shouldn't be possible for the single BKK-DXB sector(s) only (ie without any connecting QF service)?