What are your favourite pre-prandial tipples?

Limiting the list to 5 is the difficulty:

1. The Vieux Carre.
2. The Negroni.
3. The Dry Martini.
4. The Classic Champagne Cocktail.
5. The Aviation.

Honourable mentions to the Vieux Carre's siblings, the Sazerac and the Old Fashioned.

As you can see, this is a most pleasing list. Which are your favourties?