Just did it this fall and took US 35 thru OH, good route. There is some construction on I-75 where it meets US 35 in Dayton. You might check that out, if I recall we took I-675 from 70 down to US 35.
INBellbuoy, wife of 36 yrs, 19 yr old son, & Scruffy the Goldendoodle, 2007 Dodge 3500 Quad Cab, 2005 Lund 1800 Explorer w/ 90 hp Yamaha & Minn Kota I-Pilot Link , 2006 Host Yukon W/ Tent 80W solar panel