I don't think there is an option I'd want to vote for if I'm honest. It's complicated.
Whatever problems are there or are perceived has more to do with our culture than availablility, restrictions or prohibition. Prohibition has never worked.
In Belgium/France alcohol is available in supermarkets, night shops(kind of like a deli) and even from vending machines in train stations and can be purchased any time of day/night plus it's actually affordable. Same for tabacco.
My Dad was over the moon to find a pouch of baccy was only 4 Euro. Go figure.
Now I'm not saying there is no alcohol problem over here infact I have witnessed plenty of problems especially living in the centre of Brussels but there is certainly no extreme media fuss made about it and I haven't lost one acquaintance to drinking or drinking related behaviour unlike at home. They don't seem to have the same binge mentality as the Aussies or Brits(who are a good example of why earlier closing is useless). I can't put my finger on the difference really but it is there.
I do like the cheap beer and fact I can get it in the weekly shop, so for selfish reasons I'd like to see the Aussie government drop the tax and open up the market, why should I suffer for some senseless teens behaving the way I used to 10 years back, right?
Still this doesn't address whatever concerns one may have but it'd keep me happy.