You'll be in the base of your choice within your first year even if it's ATL. October vacancy shows ATL plug is a Nov 2017 hire. Next seniormost bases for newhires are DEN with the plug being a Feb 2018 hire and MCO with the plug there being a June 2018 hire.

Bear in mind, you'll spend the first 2 months in training, and you should be able to do IOE and finish out that month in the base of your choice.