Asking the "Food" question can get into a heated debat. There really is no right or wrong food. It is what works for the dog, and what you can afford to feed. Yes some foods have better quality ingredients thus making them higher up on my list of preference. But in the end if the dog has soft stools, gas, not maintaining weight, etc on a supposed "High Quality" food I am not going to feed it.
That being said I can only speak from personal experiences searching for "The Best Dog Food...For our dogs"
1) Science Diet -
HATE IT - The dogs had runny stools, did not maintain weight, had the most horrible gas in the world

, they had dry dull coats. Plus it was expensive compared to the amount of food/bag.
2) Purina - Proplan/Puppy Chow - Better than Science Diet - Still expensive for the amt we feed. Did not keep weight on the dogs in the hunting season as well but was good in the off season. Minimal gas and stools seemed ok.
3) Diamond -
LOVE IT - This is the best we have found. There are many formulas to choose from for different activity levels. Stools are formed but not hard and very minimal mess. No Gas. We feed High Energy in the off season and Extreme Athlete when running hard. All pups are started out on the puppy food. CHEAP to feed.
4) 4 Health - Also Love this food - We have one pup that for some reason is prone to UTIs. This food was very comparable to some of the "High End" foods for half the price. It is more expensive than the Diamond but if it keeps her from getting UTIs it is worth it. She also has no gas, formed stools, no mess, a very nice coat, and is maintaining weight wonderfully.
This is just my opinion and my experience with foods. We also Do Not feed canned or moistened food as it builds tartar on the teeth. We don't supplement our dogs (unless in extreme circumstances), and we don't bother with raw diets as the kibbles now are very well made to suit the dogs needs. They will occasionally get treats every now and then but that is the extent to extras. We also Free Feed which some on here see as wrong but it works for us and we do not have any dog overweight or with problems from it. JMO