I never use SFO for west coast flights. Today was a great example, few drops of rain, and the SoCal-SFO flights are delayed all over the place, while SJC/OAK are operating normally.
That said, the flight choices east of the Rockies are much, much better than OAK/SJC. It's also the only spot for premium flights like P.S., AA 321T, and Mint.
SFO is also a nice airport inside the terminal, way less chaotic than LAX.