I am going to Sonoma in a couple of weeks. I have never been there. I have been to Napa once. Please recommend 2-3 wineries in the following categories.
1-Grand Winery (something big like Sterling and Coppola in Napa)
2-Character (doesn't have to be big but something about the theme or decor gives it interesting character.
3-Good tasting wine. (maybe a boutique or small lesser known winery but has excellent wines).