Here's the flavor Wood Chips produce in food from smoker:
ALDER: Famous in the Pacific Northwest for smoking salmon, this mild wood is the chef's smoke of choice when looking to create a delicate smoky flavor. Excellent with all seafood and vegetables.
APPLE: This fruitwood is more complex than alder, yet is still quite mild. Excellent for game fish and poultry. This wood also works quite well when soaked in water then sprinkled over the coals of your BBQ when grilling chicken or steaks.
MESQUITE: Flavor of the Southwest, from smoked chicken tacos to smoked chile rellenos. Just remember- when using mesquite chips, easy does it! Using too much can add a bitter flavor to your food.