the Oliva Grand Cameroon is one of my favorites, along with just about everything else Oliva makes.
If you have another one (which I'm sure you will ;-D ), try this little pairing...
Get you a big Grand Cameroon and pour yourself a glass of ginger ale. The spiciness of the ginger and the spiciness of the Cameroon wrapper, IMHO, compliment each other very well, and both leave the tingly, spicy feeling on the tip of your tongue.
Canada Dry works well, but if you can, get on of the more expensive kinds (such as Blenheim, Spreckers, etc.), because they are usually a lot spicier than normal ginger ale, and taste oh so good with a Cameroon.