Whatever teams we pick, I see the B1G desiring a footprint in Georgia, Florida, and/or North Carolina. these states have tons of talent. Florida has a ton of Buckeye fans...former Ohioans who've settled there or ones of vacation there often.
I could see Georgia Tech and FSU making the most sense. Maybe Miami or Clemson. Virginia or VT, though I don't see us wanting two teams from the same state, though...as this expansion is about $$$ not competition, initially anyway.