For any large scale flying academy to have any hope of success, you need a stable and competent instructor base. Can't see Alice attracting and holding talent.
My pick would be Avalon, as it has all the goodies - ATC, ILS, both complex and simple airspace nearby, some terrain but not too serious, a bit of weather sometimes but generally reliable, good outfields for the bugsmashers to play. Attractive city life and beaches not far away to keep students and staff happy etc.
Wellcamp would run a close second, with the added attraction that the owners want business. For selfish reasons I would like to see it at Launceston, but fear the weather and terrain could be against it. As for Busselton - tell 'em they're dreaming...they HATE aircraft down that way.