Here are my ratings for the 16 regionals. Take the difference between ratings to determine how many runs the average team of 1 regional would beat the average team of another regional on a neutral field.
1. Fayetteville- 15.46
2. Stillwater- 15.19
3. Clemson- 15.15
4. Charlottesville- 14.92
5. Columbia- 14.88
6. Coral Gables- 14.78
7. Terre Haute- 14.69
8. Tuscaloosa- 14.58
9. Baton Rouge- 14.58
10. Nashville- 14.57
11. Winston-Salem- 14.5
12. Lexington- 14.49
13. Conway- 14.43
14. Gainesville- 14.33
15. Stanford- 14.08
16. Auburn- 13.88