My understanding is that there are pretty much just 3 options at Archerfield (please someone, correct me if I'm wrong...) or else there's Redcliffe..
At Archerfield, you have Flight Traning Aust - pretty good, large fleet, quite a few International students, so sometimes domestics take 2nd place. I believe thay have improved over the last few months though. RQAC (Royal QLD Aero Club) - They have a big contract with Griffith Uni and this seems to be the priority. I personally found their customer service appalling, but you may have a better experience.. Sunland Aviation - much smaller school. Their office looks like something from the 70's but their have some nice planes (Cirrus's) and offer a more personalised service.. just depends what you're looking for. Not sure if Gil Layts does much training anymore??
I hear good things about flyiong at the Redcliffe Aero club if your on the north side.. no landing fees and apparently good fleet. Don't know much about them.
Good luck!!