We can say all we want about equality and all that, but currently QLD and NSW produce about 90% of the players and hold all of the tradition of Australian rugby. I think very soon with Twiggy's backing that WA will become the third power center of Australian rugby, and that the ACT will keep doing what it does and moulding a great side despite not producing much home grown talent (largely because they are so small, not that they are not good rugby players etc).
Melbourne..... well, I guess it's a big city?