My lab: Animal, Vegetable or Mineral she'd eat it. Kills her bowl of food in less than 30 seconds.
My Weimaraner: Very picky, I have to switch the flavor of dog food each bag. Finally found two brands he likes too, Purina One and Purina Pro Plan. I tried IAMS, Science Diet, Nutros, etc and he might make it a week then refuse to eat it for a day or two. Took him to the vet and there was nothing wrong with him just a picky eater. I think he gets bored with the same food after a while, but the Purina stuff with meat chunks in it he likes.
I bought this months 40# bag of Purina One chicken and it didn't have meat chunks in it, I didn't read the label and its just kibble, he has been eating it like its crack. Normally it takes him 5-10 minutes to eat 2.5 cups of food but he gets down to business with this stuff.
Both of them love milk bones, we always keep a healthy supply of them on hand.