If you are in the lower Valley and/or you want to do it all quickly, I would say go to RNAC not only because Anthony is a nice bloke and a dedicated instructor, but because some of my mates find it hard to get a booking with HVA if you're not one of the commercial students. Good guys at HVA all the same.
If you are in the Upper Hunter there are two options at Scone;
There is the Aero Club
and there is the other operation, currently an offshoot of ACA services at Camden but changing hands "soon".
You can call the base instructor there on 0408 966 979.