The auto bid. The other 7 matchups would be great. Looking at the top 15 right now you would have:
4 from Big West
4 from MPSF
4 from MIVA
3 from EIVA.
Not only would there be some great matchups, but these players dream of playing in the NCAA tournament. It would give them an opportunity to fulfill a dream.
Imagine being ranked top 10 your whole career and never having a chance to play in the NCAA tournament. Dumb IMO. Expand.