If you can average 75-80mph on the interstates, is it an easier trip to go I-20 to ATL, then down I-75??
You're right, we have lots of construction here in ATL and always on weekends.Only problem is you never know what you're going to get in Atlanta, and the I-285/I-75S junction can be nasty. My wife is from south Ga, so we go down that way pretty often. I've been stuck on 285 waiting to get on 75S for an hour on a Sunday afternoon. I've found that Hwy 280 works better for me. You can either hit I-75 at Cordele or Tifton. Takes about the same amount of time as going through ATL