I feed my 2 babies dry -Purina One cat food. They do love getting wet food for treats every now and then. We don't give it to them too often...wouldn't want them to go to the bathroom more then they should..if you know what I mean!
I heard that wet food can rott cats teeth..not sure if this is a myth or a fact. I think dry food is better for them, personally.
I give them Pounce Treats as well. They go nuts over them as well.
I use to have the same trouble...Thor would run in whenever I would use the can opener and then his lil' sister would follow her big brother Now they know not to keep their hopes up until we actually call for them to come get treats. They come when they hear the word...he he.