I do have 5 SEC teams in the Sweet 16 and 3 SEC teams in the Elite 8, but my Final 4 is 2 B12, 1 B1G, and 1 ACC. I have Duke beating BYU in the Elite 8, Texas Tech knocking off Florida, Houston beating Tennessee, and Michigan St beating Auburn.
Strongly considered Florida in the Final 4 instead of Texas Tech, but 3 1s and 1 2 in the Final 4 is boring so went with Texas Tech instead.