I have searched the archives, but since many of the posts are over a year old, I thought I'd ask again: which of the SF airport hotels is the best, and why? It appears to be a tie between the Hyatt and the Westin, and I don't know how to choose. Thanks!

They are both nice hotels. I would choose the one with the best price and/or the hotel which is part of my frequent flyer program.

Westin is my favorite of the two. Hyatt's just too big.

While I've stayed at the Westin probably the past 3 trips out of SF, we enjoy the Hyatt mo' bettah since it has Knuckles Sports bar and a deli that stays open late, if not 24 hrs. That's convenient when you get back to SF after a flight around midnight and have some munchies.

Great lobby, too.
It's also closer to the movies and Max's Opera Cafe for their great breakfasts.
You won't go wrong with either hotel tho.
Kal

My fav is the Sofitel. It's beautiful and the restaurant is devine!