Why do you think it does- is the potomac comparable to the Pacific, are you a fan of humidity?
One of my best friends lives in LA and repeatedly has tried to get me to move out there. My Response has always been "too much traffic, too many douchbags," I can't credibly cite that as a response since I've moved here.
If you have unlimited funds, LA is superior to DC. Weather, Ocean Proximity, Food, Entertainment Options, etc, etc.
Not everyone is going to prefer LA and it doesn't mean I don't like living here, but If I won the lottery, A house in Santa Monica, or Malibu would definitely be high on the wish list. There is nowhere like that in this area.