Not sure mate. I think they've always been up near the top. CBA (Commonwealth Bank possibly the most ironic name for a bank ever) are huge, along with ANZ, NAB and Westpac, they make up the 'Big 4' who own Australia, well, the bits the mining companies don't own anyway.
Australia all but dodged the crash on the back of the insane amount of money in ore mining and close trade ties with China.
People have been getting a bit more vocal about the general evilness of the banks, but they will always be protected as their profitability is seen, rightly or wrongly, as propping up the economy. They just say, "Hey! Look at the UK and USA, you don't want to end up like that do you?". :shake: Well, no we don't, that's why we'd like change, but that bit doesn't seem to get through.
The big banks have been having everything their own way with rates the last couple of years. The habit now is to raise rates when the Reserve Bank does (fair enough) but then leave them there, or only pass on a small percentage when the Reserve Bank cuts rates again. They're also taken to randomly hiking rates off their own backs if the Reserve Bank doesn't do what they want. About one step short of printing their own money.
ANZ are in court today for a class action claiming their fees for going overdrawn, etc are far in excess of the actual cost. Same as a few of the big ones back at home not too long ago. So hopefully that goes somewhere, a drop in the ocean really though.
A couple of smaller banks have been growing recently, I should probably look into them more.
Oh, cash machine fees as well, that's another thing to get used to. Only free if you use your own bank's cash machine. Use another one and you'll be charged circa $2 per transaction, even to check your balance, like at those third-party machine in pubs.