This has been asked and answered innumerable times on the forum. Having lived in Augusta, GA, for 26 years necessitating towing through Atlanta to get west, we found that towing straight through on I-20 to be the best - avoiding rush hours, of course. Avoid the loop I-285 AT ALL COSTS. An RV-specific GPS such as the Garmin RV series really helps with being in the correct lane making things smoother and less stressful.
Rob
U.S. Army retired
2020 Solitude 310GK-R
MORryde IS, disc brakes, solar, DP windows
(Previously in a Reflection 337RLS)
2012 F350 CC DRW Lariat 6.7
Full-time since 8/2015