I'm flying to San Francisco from L.A. this coming weekend and need some opinions on a few restaurants I'm considering dining at my first night there. I've already got reservations at Gary Danko and Bistro Jeanty on Saturday and Stars on Sunday, because I'm dying to try Ron Siegels's food. But I'm arriving on Friday and have several restaurants I'm considering having a casual dinner at. In your guys opinion, which do you feel is the best quality restaurant of the following three. 42 degrees (I heard they have an appetizer of bone marrow, which makes me salivate), Jianna (I've heard many good things about this new restaurant), or Bizou (it seems like many chefs love this place, and in my opinion they are the best critics of all). My tastes are eclectic and I always want to try new things, especially offal like my screen name makes evident. I know these restaurants are somewhat different from each other, but in terms of quality of food and exciting dishes, which do any of you prefer. Thanks for any feedback.