I would highly recommend Saddleback Hospital. The facility is very nice and the staff is wonderful. I spent two weeks there on bedrest before delivering my twins. My husband kept saying it was like I was at a hotel. (He was an orderly while in highschool, so he has a lot of opinions about hospitals). He would bring take out and come eat with me every evening. This was huge because he's a germa-phobe and normally wouldn't eat in a hospital environment, if he could help it.
Anyway, when I had my twins, Dr. Kurtzman was my doctor because I was considered high risk. He was great, as are the rest of his group. When I had my son last year, Dr, O'Toole was my doctor. She was wonderful.
BTW, right across from the hospital is the Laguna Hills Mall. I liked this because I could easily send my husband over to all the restaurants to get me what ever I was craving!