This is one of the most debated subjects in the pet food world. Both have their postive and negative aspects.I worked for an al nutural pet food place before,and their were customers that ran the whole gamut, as to what they thought was best for cats. I say,as long as the food is great quality, both. My cat Blue wouldn't touch wet food. Loves his "crunchies"!! So, I always fed him dry, and he's got great teeth! At our house now, Jerry the cat gets free fed dry, and 1 can every day. I think it depends exclusively on the cat, IMO