Gary Danko - excellent - one of 9 four-star restaurants in SF, but very very pricey.
Slanted Door, best high-end Vietnamese in town. Wonderful location in the Ferry Building on the bay. Hard to get reservations.
Bacar - I haven't had the food - only wine, but have heard that it is good, but overpriced. Phenomenal wine list, though.
Michael Mina- haven't been.
Find reviews of all of them at
http://www.sfgate.com/food/