Daisy Brand sour cream is a favorite among Chowhounds, both for its excellent flavor and for its refreshingly short list of ingredients (sour cream, period). Even the light variety is good. Hounds also like Breakstone’s, which MarkG finds worthy to be eaten straight out of the container.
swsidejim prefers crema fresca–style sour cream, and buys El Mexicano Crema Mexicana to go with Mexican food. And jinet12 likes Daisy and Breakstone’s, but buys Horizon Organic these days. It’s very tasty.