a good place for a family (Islamabad)

Aoa,
We r moving to Islamabad soon.
I wonder where the best schools are? There is apparently no official ranking of the schools. I have heard about roots, Froebels, Cit school and Bahria. And Beacon house. I wonder what the best school is delivering the best academic level? My kids are age 9 and 12. (and 3).
What about safety?
Someone said Bahria And F sectors. I wonder how the school is in Baria. It would not be fun living in BAhria and driving to Islambad city for picking and dropping the kids.