Which California region costs more to live in for middle cl? Bay Area or Los Angeles County?

When you factor in a car and gas because you are always stuck on some freeway in LA, I would say LA is higher. There is another factor to consider. That is time. In LA you are going to spend a lot more time commuting (unless you happen to luck out and live near your job). How much is several hours a day worth to you? Considering that factor I believe San Francisco is a lot more attractive.