Early Morning Long Runs in Atlanta?

I will be in Atlanta next week for the Braves season opening series while also in the middle of training for a marathon. Plan on spending one night in Kennesaw with family and one night with a friend in downtown Atlanta. I have a 16 miler on the docket for next weekend. I normally do long runs at 5 AM or so to get them done before the work day.

I was thinking of running my 16 miler:

A) Run at home in Charlotte Thursday morning before I leave in the afternoon

B) Run Friday morning starting in Downtown (near Centennial) with a mix of the beltline and connecting city streets

C) Run Friday morning OTP in Kennesaw (near the Mountain) but need recommendations on a contiguous path

D) Run Saturday morning starting in Downtown with a mix of the beltline and connecting streets

Edit - I will end up being OTP Thursday night and doing my long run up in Kennesaw Friday morning, but will take y'alls advice and hit the beltline for a medium distanced run on Saturday. Thanks everyone!!