I have flown to Australia a few times and always leave in the evening since I have been using my Amex 2-4-1 voucher so cannot compare it with earlier flights.
I do find it convenient to either spend the day getting ready or even work in the morning.
After some drinks on the ground and inflight and dinner, I usually fall asleep and wake up somewhere over eastern India.
I have flown direct and with stop overs and would try and do a stop in BKK or SIN to break up the journey.
The next sector is a much shorter night sector and this year we flew via BKK which gave a longer second sector and I preferred that as it gives more sleeping time.
As we were in F, even 23 hours on the 'plane (as we did on the return) does not seem too difficult.
Arriving at 05.30 into SYD is not ideal and certainly the day seems very long........