Here's my take on a fair map, prioritizing competitive districts.
http://dra-purple.indirect.cc/join/2591876f-608d-47c7-93b9-8514c62d4b53By district:
GA-01: Savannah, Coast. Trump 56-41. Essentially unchanged. Safe R with Carter, Likely R with OPEN
GA-02: SW, 44% BVAP. Bishop should survive here, even though this seat is now Clinton 49-49. Likely D with Bishop, Tossup if OPEN
GA-03: western Georgia, Atlanta far exurbs, Trump 67-30. Ferguson will be fine here. Safe R
GA-04: this seat takes in some of Gwinnett, and is Clinton 72-24. Johnson will be fine as his base in Lithonia is in the seat, and its VAP is 40% white, 10% Hispanic, and 43% black. Safe D
GA-05: south Fulton, SW DeKalb. This seat is 67% BVAP, and Lewis will be fine until he dies. Safe D
GA-06: Cobb, this seat gets cleaned up a lot. McBath will be fine, as it is Clinton 49-46. Likely D with McBath, Lean D if OPEN
GA-07: Roswell, Sandy Springs, Alpharetta. Succeeding the old GA-06, this seat is Clinton 51-45. A moderate Republican would do well here, and but it is Clinton +6 and trending leftward, so this seat is Lean D
GA-08: south Georgia, Warner Robins, Valdosta, Waycross. Essentially all the rural red portions of Southern GA. Jim Marshall could have won this 15 years ago, but Austin Scott is untouchable as it is Trump 67-31. Safe R
GA-09: northeast GA, Dalton, Dahlonega, Augusta suburbs. Essentially the GA-09 from the 2000s, and Collins' successor will be safe here as it is Trump 75-22. Safe R
GA-10: Athens, Winder, Conyers, Lawrenceville. This seat is Clinton 49-48. It has counterbalancing trends, from the Atlanta suburbs in the west all the way to Winder and Watkinsville in the east. This seat would be a fair-fight seat, and Jody Hice would be in a competitive race. Tossup
GA-11: Gainesville, Cumming, Jefferson. This seat is the successor to the old GA-07, and takes in the northeastern suburbs and exurbs of Atlanta, including Forsyth/Hall Counties. This seat is Trump 68-28, so it is Safe R.
GA-12: Statesboro, Augusta, Macon, Milledgeville. This seat is essentially an eastern Black Belt seat that should be competitive for a Blue Dog Dem. It is Clinton 49-49, and the trends in the south of the district make it such that only someone like John Barrow would make it competitive. Still, it has a sizeable rural black population and is 42% BVAP. Tossup
GA-13: Forest Park, McDonough, Griffin. This seat takes in the southernmost suburbs and exurbs of Atlanta, and is plurality-black VAP, total population is 52% black. David Scott is on the more conservative side anyway, and will likely easily prevail in this Clinton 59-38 seat. Safe D
GA-14: Bartow, Cherokee, Rome. This seat combines the areas of the old GA-11 with some of the old GA-14 and is solidly Republican, being Trump 75-21. Graves is retiring, so his successor will likely easily hold on here.
Summarizing:
Safe R: Carter (1), Ferguson (3), Scott (8 ), OPEN (9), OPEN (11), OPEN (14)
Tossup: Hice (10), OPEN (12)
Lean D: OPEN (7)
Likely D: Bishop (2), McBath (6)
Safe D: Johnson (4), Lewis (5), Scott (13)
This map, depending on candidate quality and overall electoral performance could result in 10-4 R, if Bishop's seat trends right further, or could go to 8-6 D, if districts 7, 10, and 12 are replaced by Democrats. But this is just my two cents.