As a beer snob, it really depends on what you're drinking...
If you're drinking water (Budweiser, Miller, Michelob, etc.), anything is fine.
If you're drinking a REAL beer, it really does depend. Here's some of my favorite combos!
St. Bernardus Abt. 12 - Caramel, Clove, Vanilla, Chocolate
Westmalle - Vanilla, Peach, Boston Cream Pie
Blue Moon Grand Cru - Mint, Pineapple
Rochefort 6, 8, 10 - White Chocolate, Chocolate, Caramel, Cinnamon, Clove
Weihenstephaner - Mint, Lemon, Cherry, Vanilla, Peach, Grape
Duvel - Caramel
La Fin Du Monde - Vanilla, Clove, Caramel
Fantome Saison - Vanilla, Clove, Caramel (This was my 30th birthday beer and I spent 70$ on two 750ml... It was so good!!!)
If you have no idea what any of those beers are, come to Atlanta and I can teach ya!