Interviewed at Davis, Stanford, UCI, Loma Linda, and Harbor. I got all 5 of the Cali interviews I applied for, but some friends with just slightly lower numbers didn't get any at all. I would say they are all competitive because they're in a pretty popular location. That fact that they are all at least average programs doesn't hurt either.
UCLA-Harbor has a long and storied reputation, but to be honest I was turned off at the interview. Underfunded hospital with 50-70 people in the waiting room at noon. You really want to spend all day with patients who had to wait 15 hours to see you? However, I ranked them low because I didn't fit in with the people so much and I hated the location. By the way, the people are nice enough (as are most people in EM) they just tend toward hip, young, single urban/beach loving folk. Whereas I'm a less than hip young married suburban/mountain loving person. Good program. Expect less attending contact than at other institutions, but I really liked the attendings.
UCI was left off my list. Although I thought the US was top notch, and the people nice, I didn't like the director, location, ED, intrahospital reputation, cafeteria, library, program etc.
Loma Linda is very good. Location turns lots of Cali folks off. The SDA thing turns others off. But it is a diamond in the rough with super nice people, a nice peds ED (and a great peds experience, perhaps the best I saw) and mountain bike trails behind the hospital. Plus, a 2 hospital experience. Good program.
Stanford boasts 4 separate hospitals to learn at. So if you don't mind commuting in the Bay Area, put them on your list. I didn't get a chance to see all the hospitals, but I was less than impressed with the Stanford hospital (although it is the best lunch on the interview trail, and a band plays in the lobby.) The people were nice. Good program.
UCD was second on my list. Very busy. Residents work very hard. (20 12s) More than enough trauma (read: too much), very cool residents, city not too big but close to bay area and lake tahoe/sierras, another good program.
Your education would be fine at any of these programs, you just gotta find which one you would fit into. I would shy away from Drew however. I've got a friend...