In two ways: two great wines from a stellar vintage. And both in magnum. To start with the conclusion - it is just of matter preference. The Cheval Blanc was at its peak. Regular bottles tend to be past the best drinking period, but magnums are in optima forma. So fruity, so silky, Cabernet Franc at its best. The la Mission opened up after 10 minutes and proved to be the better wine: superb balance, all perfect. We tasted with 10 persons, 6 voted for Cheval, 4 for La Mission. So the better wine did "lose" - it was just a matter of preference. BOW Cheval Blanc 9+, La Mission 9.5.