I have done both, and they each have their pros & cons. When we flew into LAX, we had a direct flight from Newark (NJ) and the r/t was two hundred something ( this was in 1998). We took a bus to the DL Pacfic, as it was called then. We wne again next year and flew into John Wayne. This was not a direct flight and we had a layover in Houston. We rented a car, and experienced no problems, but it was not rush hour. We drove to the studios on a Monday morning, again after rush hour. I preferred the direct flight, but the travel time from Orange County was much shorter. If you can get a direct flight, I would go there intead of LAX. I live on the east coast, and the jet lag was very bad when we came home, as we flew to Houston first, had a layover and then got home. It made for a very long day.
Just my two cents...