Bacardi works fine as the base spirit in an El Presidente and allows the other ingredients to shine, but using a richer rum like Appleton white or 10 Cane will add a mellow smoothness to the cocktail. Noilly Prat makes an excellent dry vermouth, and for the adventurous set, try creating your own grenadine. Simply mix pure pomegranate juice with superfine sugar until the sugar is well dissolved and the consistency turns to a syrup.
1 ½ ounces white rum
3/4 ounce orange Curacao
3/4 ounce dry vermouth
dash of grenadine
Shake all ingredients with ice. Strain into a cocktail glass and garnish with a twist of orange peel, if desired.