The Best of Both
A third option is to choose both wet and dry foods. You can do this by mixing the foods together in the same bowl, giving dry in the morning and wet in the evening (or vice-versa) or by giving them wet food as a "treat" for exceptional behavior. Just make sure you're not increasing your dog's caloric intake when mixing these foods, especially if he's on a weight management plan.
Keep in mind you should avoid mixing different brands, especially if your dog is on a therapeutic food. Hill's Pet Nutrition foods are specially formulated to meet the needs of your pet, and by mixing different brands you can dilute the precise balance of Hill's nutrition.
Talk to Your Vet
If you have any concerns at all about your dog's health or about whether your dog should be eating dry or wet dog food, ask your vet.
Whatever you decide to do as you compare wet vs. dry dog food, make sure you follow these guidelines in changing your dog's food for the smoothest transition. It's also okay to let your dog tell you which type of food he prefers. When you first start them out on a new food regimen you monitor their feeding habits to see if he gravitates to one over the other. Just be sure to not change food too quickly or too frequently as it could upset their digestive system. Also, ensure the food you choose is balanced and meets the nutrient needs of your dog's health considerations.