How long will you be in LA?
I know I went to LA almost two years ago, and we managed to squeeze in a short trip to San Francisco while we were there (despite them being quite a few hours apart).
Fully, fully fully recommend checking out San Francisco, if you're in LA for an extended period of time. It is by far the American city that I have enjoyed the most. Not sure what it's like in the winter (maybe teh Bay Area folk like Beantown and squareinthecircle can elaborate), but I liked it more than LA, Seattle, and lotsa other cities that I've checked out.
$0.02 from a non-American
Really? I will have to check it out somtime then as I really like Seattle.