1. Texas - UT logo seen everywhere, partly since they win consistently, partly cuz folks like their uterus logo.
2. Oklahoma - there are rednecks & white trash everywhere, so large fanbase inside & outside the state.
3. Nebraska - After the corn harvest, what else is there to do in Nebraska? Outstate fans who remember when Nubb was actually competent.
4. Texas A&M - Fracking psycho fans, mostly army wannabes & whacko militia types, but unfortunately a lot of them.
5. Missouri - Pretty popular in-state, except in the KC & STL metros, where there's a lot of drift to ku (KC) and Big 10 (STL). I think it's mostly the black & gold thing.
6. Kansas State - Purple pretty much THE official state color for football.
7. Oklahoma State - Always 2nd fiddle to OU, which gives them major inferiority complex, even though a classier bunch than the Norman inbreds.
8. Texas Tech - Tech fans have major complex about both UT and aTm, largely from living away from civilization in the flat middle of nowhere. Tech is a W. Texas thing; good thing no one lives there.
9. Kansas - At ku, football is just a mildly interesting interlude between end of basketball and re-start of basketball. Fans wear BBall shirts to games cuz it's all they own.
10. Colorado - Fanbase mostly the Boulder area and even there fragmented, cuz there are so many other fun things to do when stoned.
11. Iowa State -Alas, trapped between the Corndogs and the whole Big 10 dooms them to a smallish fanbase.
12. Baylor - Small private college in Waco. 'Nuff said.