I'm guessing these commitees involved in saying we're the greatest haven't seen the the ring road with the missing section, or the end of the eastern freeway missing link. Or all our level crossings.
The committees that decide these things are biased.
They assume lavish living allowances that allow renting in the best suburbs.
They assume inner city cultural interests.
They assume high incomes that allows consumption of the best things the city has to offer.
But
They do not assume people trying to buy a house in the outer suburbs
They do not assume suburban transport problems eg level crossings and infrequent buses
They do not assume average or lower incomes
For the itinerant executive or diplomat (the sort who reads the Economist), it is easy to see how Sydney or Melbourne would come up trumps.
But for people on lower incomes with less specialised jobs, places like Adelaide, Hobart, Newcastle, Geelong, Bunbury or Warrnambool come up trumps. The main benefit of regional is cheaper house prices and probably shorter commutes while the main liabilities is less tertiary education for children and less public transport.