That will, in part, depend on whether your spouse (an assumption since your profile states that you are inactive reserve) will be at Ft. Stewart or HAAF. Savannah is quite close to HAAF but is a bit of a haul from Ft. Stewart.
It also depends on whether you, personally, will be going to school. There is a small community college in Hinesville (the town right outside the main gate). The rest of the colleges are over in Savannah. If you need/want to attend those then you might want to look for a place halfway between Hinesville and Savannah.