Allright... first post in this thread - my observations for TFU here in WA is reflective of other states: Kmart is best overall, but David Jones & Myer get the new stuff first (by about a month). Kmart has sales quite frequently, so sometimes better to wait a little if stocks are good.

Kmart Innaloo:
FINALLY had wave 3 deluxes in... there's only one Silverstreak left, usual $26.99 - I picked up the one Ironhide I saw there last week.
A couple of Onslaughts & Powerglides at usual price $58.
Saw SE Prime & Overkill last week at $38 (which I think is steep!).

Big-W Karrinyup:
Total wipe-out pre-Christmas.
Only had 2 Silverbolts & 1 Onslaught for usual $58.

Myer Karrinyup:
Having 30% off for 3 days!!!
4x Bruticus for $49 post-discount
Stacks of Optimus Primes for $70 post-discount
A couple others of the voyagers, but nothing else I saw...

Myer Morley:
I picked up a Sideswipe that was hidden in a neighbouring shelf last week, only 1x Acid Storm left for $29.
Otherwise, there were 2x Superions, 4x Bruticus, a couple of Primes... with the 30% off it might be worth running over to have a look...

David Jones Karrinyup:
Absolutely jack all (only had 1x TFA Ultra Mags left!!)
This was the place where Wave 3 Deluxe was sighted first... looks like it's taking them forever to restock.