One of the most important considerations in which law school to attend is where you want to live/work after law school.
Of the 3 listed, I would say that Cal Western is the best. That degree, however, puts you working in CA for the forseeable future. OK city, would probably give you job in OK or Dallas market. I have no clue outside of AZ how Pheonix would do--the problem is the association with the online college, and the fact that its newly approved.
Texas Tech would do ok for a job anywhere in TX, Dallas market is probably the highest concentration.