Best primary school in Sydney

My son is going to a public school in Lakemba, NSW, which I didn't find upto a good standard. More specifically the quality of teaching (& teachers) and in-house environment are not satisfactory, in my opinion. I have the flexibility to move out to any other suburb if necessary as my kid's education is the first priority to us. Can anyone help me by suggesting some name of primary schools that will expectedy provide quality eaducation particularly on academic side, so that in future, entering in the selective schools can be easier.