Mads Mikkelsen has the Christopher Walken that guy just looks bad. His rivalry with Bond perfectly complements the Vesper romance.
Weeping blood is a bit “how can we make this guy more evil?” but otherwise the character shines. The Villain: Le Chiffre isn’t quite a classic villain (killed off too early) but I make him the best of the Craig era and perhaps of the Brosnan era too.