Regardless of what the polls say right now, I can't help but wonder if there's an election winning policy just waiting to be grasped. I speculate that whichever major party wholeheartedly embraced the legalisation of same-sex marriage would probably romp in at the next election.
This is probably a cynical view of the Australian electorate, to imagine that it's not interested in economics, industrial relations, education, or any of the other usual issues. However, right now it's probably the only issue that would galvanise strong feeling in the voters. For just about everything else that they've presented in this year's election there's no significant difference between the ALP and the Coalition, with the possible exception of the carbon tax.
Same-sex marriage. There's your vote winner in 2013.