I-75 will fit your needs for what it sounds you are looking for. I never have had a problem traveling any of these roads...so I am somewhat uncertain what the stress is about.
Maybe you drove through there one time it was heavy fog....we all do, from time to time. Hell...I can run into dense fog...even up here in Michigan. I frequently see it crossing Illinois on Hwy. 80...or even freezing fog on Hwy. 90 through S. Dakota.
anyway...just take I-75...and you will be happy with that choice.
Happy Trails.