Cos d'Estournel's 1991 (about 50% of the harvest was declassified) is one of the wines to buy given its relatively low price and fine quality. It displays a dark ruby color, and a big, rich nose of cassis fruit married intelligently with spicy new oak. Offering surprising fatness and fleshiness, fine length, and a sweet, creamy texture, it should drink well for at least a decade.