If you stay in, I would advise LOGO. Personally I would avoid the other RAAF flying jobs. They will dominate your life and make it hard to find time and energy to continue flying in your spare time. You would learn a lot about aviation and you would earn a little extra pay. What if you went ACO and got sent to P3s? No spare time here. Just sitting at a screen doing fuel graphs and talking to cones.
LOGO works because there are plenty of jobs to choose from and after pilot it probably gets the best skill sets for transitioning to civvy work if you decide to give flying a miss down the road.