A sixteen league makes it easier to keep traditional rivalries alive, but like red, I would be fearful of being stuck in the non SEC division.
If the country goes to four 16-team super conferences, there will be some good teams left out. These teams will be looking to get into one of the super conferences first. Georgia Tech Miami Louisville NC State Virginia Maryland Boston College Syracuse The SEC will never take Syracuse or BC and will never take Georgia Tech back. They won't take Louisville or Miami in states where we already have teams. That pretty much leaves NC State or Maryland. And I think the SEC would take VT over Maryland.