Should preschool emphasize socialization, or academics?

Feeling pressure to prepare kids for standardized tests, some preschools make academics their first priority. Proponents applaud this early preparation, but others worry that it comes at the expense of preschool's original purpose: socialization. Those opposed to an academic focus say preschool should return to being a place where a child's only job is to play. What do you think should be the goal of preschool? We want to know!