Which is better? UC Davis MBA or UC Irvine MBA?

UC Davis is ranked a little higher. Of course, it is also in the middle of nowhere.

UC at Berkeley and UCLA are superior to either.

Between the two, pick UCD. It's a great campus and has a very constructive study environment. If you enjoy a laid back environment UCD will be an excellent choice. UCD is 20 minutes away from Sacramento and 1.5 hour from San Francisco (no traffic). Go Aggies!!

This site has some good links and information on the topic

http://www.daylon.com/mba/