Meanwhile, beat cream cheese and remaining sugar in large bowl with mixer until blended. Add eggs, 1 at a time, mixing on low speed after each just until blended. Pour half the batter into separate bowl. Add melted chocolate to batter in one bowl; mix well. Add peanut butter to remaining batter; mix well. Spoon chocolate batter over crusts; smooth tops with the back of spoon. Top with peanut butter batter.