After trying bids in the 75/85 range in Union Square and Embarcadero (which had been successful for me in the past), I had to lower down to 3 stars and included Embarcadero, Union Square East and West, Marina/Lombard and Fisherman's Wharf. I hate staying in Fisherman's Wharf, but based on my experience it's seems like there is not a lot of availability this weekend, at least not enough to push prices super low.