Disnee Dad Says..................................S.F. by far!
Just in the city. Fishermans Wharf, Pier 39, Blue and White cruises into the bay, Angel Island, Alcatraz, Japantown, the zoo, Coit Tower, shopping on market street, the trolley cars, fresh crab, the ocean. That's probably 20% of the things to do in S.F.
The real joy is outside the city.
Wine country is little more than an hour away. Just so you know, we go to NAPA for auto parts, we go to Sonoma for wine! Go to Sonoma, Rutherford, Calistoga, for an all day trip.
Two hours south is Carmel, and Monterray( very bad spelling!)
See the aquarium, and do go do 17 mile drive, pack a picnic lunch if you have time. Have a drink at Pebble Beach Lodge, or shop at the shops. The promised land for golfers! Then head into Carmel for massive shopping, the whole town seems to be stores!
Eat at the Fishwife, if you get a chance.
If you like history, head east. A little over two hours is Coloma, the site that started the gold rush, and if you really crave gold Reno is 90 minutes past Coloma!
So there you have it, the top 20% of things to see, you don't want to know about the other 80% , you'd have to move here to do it all!