[Jameison]

"But Australia has many world class players in their first string teams - more people in their First XI play for top European clubs like Liverpool, Middlesbrough, Parma, Newcastle than their American counterparts"

Australia also hasn't scored a single goal in the World Cup before, hasn't played in the World Cup for over 30 years, and haven't even come close to winning a World Cup match before.
Not a single one of their players has payed in any World Cup match before either.
America has done all that and more.
That's where experience and tradition come in.

[NZerFromHK]

I wouldn't put too much confidence into the past World Cup performance to gauge Australia's fate this time. After all, the current crop of players weren't even born yet when their country was last in the World Cup.

A few Australian soccer fans on another forum boasted sometime last year that had both sides presented full strength teams, Australia will beat the US.