South Australia is a wonderful place for a young family.There is much to discover and explore in the state and the camping and outdoors lifestyle is amazing. We live in Aldinga Beach, its about an hour south from the CBD, but my OH works in the city and the drive is comfortable. Here we have long stretches of golden sandy beaches with safe (apart form the odd great white shark) swimming waters that quite often you can be the only ones on them, in summer they do get busy as some are drive on beaches but this adds to the charm of the place. There are sports and social clubs galore and the local schools are all decent enough. At this time we couldn't think of living anywhere else, we feel safe in our home, and don't worry too much if we go out and forget to lock the door (happened a few times). Adelaide as a city is quaint and olde style with a modern twist. I like it. It's small and friendly and you cant really get too far lost as its set out in grids (just keep turning right and you'll end up at the start lol!)
Brisbane for me is fabulous - as a holiday resort. I have always loved QLD and have visited for years before moving here to live. In fact pre kids we thought of moving there to a place called Scarborough just north of the city, but now we have the girls it just doesn't have the same "comfortable" feel that Adelaide has. Adelaide for me is like pulling on my favourite slobby trackpants, i'm just allowed to be me and no one cares if I havent dressed for dinner or got a full face of make up.
Perth is lovely, but you do get the feeling of acute isolation. We have family there and so we will always have ties to the city, but it again never really feels quite right as if we know we are not where we belong.
Having said that I'm a firm believer that Adelaide chose us! We came here for 4 days (I was on a post grad uni exchange in Perth) 4 years ago to visit our best friends, we fell in love by day 2 and by the end of day 3 we had a job and bought land!!! If we had our time again, i'm cvertain we'd stick with SA.
I'm definately part of the i'm loving it crew and totally agree with the saying that SA is HEAPS GOOD!! :-)