I've been to most, especially the early ones. I agree that the Russians were a highlight.
My tip. Take your aviation scanner along with all the frequencies programmed in.
You'll hear plenty of stuff of stuff that the commentators don't mention and you will know what is coming up next.
eg. One of the Roulettes taking a bird strike and leaving the formation with another so that they could assess the damage.
F/A-18 terminating his display early due to "a problem"
B1 departing for Darwin/Guam/wherever and talking to Melbourne. They requested permission to depart via the Twelve Apostles so they could take a look.
I would love to have been on the cliffs that day.
Enjoy the airshow!
Cheers