There are 4 doctor's at my OB's office. They make you see each of them at least once because when you go into labor, you can't pick your doctor, it's whoever is on call.

I liked all but one doctor. I lucked out and didn't have her delivering my LO. I would have preferred my normal OB that I had been going to since I was 19, but really I only saw the doctor for a few minutes so who cares anyway.