RMC is direct entry pilot, and ADFA you have to earn your Degree.
It depends on what you want really. A lot of pilot candidates go through ADFA because they earn a Bachelors in Avionics, but
there are pilot candidates who go through RMC.
There are two kids in my grade, who wish to enter the ADF as pilots, one is applying to go to ADFA, the other who wishes to be Helicopter Pilot is applying to go to RMC.
In regards to ADFA, the UAI (University Admission Index) is the same as that of UNSW, so you not only have to pass ADF Requirements, but UNSW as well.