Valeo I am not comparing A-League to NRL or AFL teams. Both NRL & AFL wins by a long way no question. But at national level its the Socceroos.
How this was done was very clever by Frank Lowy, he said a number of times in Hal 1 & 2, you can have two teams, you can support Parramattam or Geelong and a football team as well. Then taking the game to a summer time zone (or actually keeping it there) he invited people to come and see.
The first stage of the plan in essence is to make football the number two sport in all states. Given NRL & AFL are stated based then football becomes the national sport and that stage of the plan is almost complete. The next stage is to capture regional Australia and not take on either the AFL & NRL in the capital cities in a big way. This is now in full flow with the gold coast, townsville, to add to the MIGHTY MARINERS , Scum, and the NIx's, then Woolingong. You see regional Australia in NSW & QLD is much larger than Perth, Horbart, Darwin (akthought townsville say they will play there) Adelaide combined, so by capturing the regional centres which neither the NRL or AFL will put teams in will provide a massive base of support in the fastest growing parts of Australia, that is regional NSW & QLD is a very clever.
Also the players in the first team squad play in some of the top European teams, like Liverpool, AC Milan, Newcastle (England not to confuse with Scum just north of us), This gets heaps of cred, and that so far at least the Socceroos are never in drunken brawls whereas all the other codes have various degrees of mis behaviour.
So believe me mate in national terms, its the Soccroos first especially in WCQ. Put as simple as I can Frank has made football the second code supporters of other codes follow thus everyone supports the Socceroos. Also the closness of the matches and thje quality of the first team have a lot to do with it.
Socceroo/ Mariner / Whangarei