Usually any WV connections at HC or players from WV, Saban (Bama) , Jimbo (A&M), Doc at Marshall , RichRod wherever he coaches ect. Plus I have just experienced good memories or friends have involved me at/for other teams/schools as well, will be a factor in my search for a new squad. I usually root for:
Tennessee- Since the Majors era, have enjoyed many a players from UT.
Florida - Yea its an issue^, but since Galen Hall/Emmit Smith days, loved Spurrier, Tebow as well. Few transfers helped home state Marshall have some really good teams.
South Carolina- Liked USC fans since the days of them cheering “Tannyhill sucks!” During a game I was watching them play and.. they were winning

we always had a party as honorary Cock fans in WV when they opened the CFB season each year and got a lil closer to them.
Notre Dame- had some great experiences there with friends and it’s very hard not to get wrapped up in the tradition. Cool place.
LSU- I remember exactly where I was when the “Earthquake” happened. LOVED partying with their fans when they came to town, Liked em ever since.