SFO is not at all crowded. The lines are short, but so are the attitudes of the flyers, which are mostly over 50 and under 12. I usually can find a cute enough girl to sit near and strike up a conversation with but I am instead sitting near a power outlet typing away at blogs. The second observation, which likely makes sense there are a lot more people of non-western descent. Likely you are more likely to fly on Christmas if you aren’t celebrating that day.
I paid the extra bucks to upgrade my coach seat sitting in he middle of a middle row in a full coach to a seat supposedly by myself (as of when I booked) in first class. Hoping for a power plug and some decent food.