The "Tale of Puppy Food" continues doesn't it? We done so much research before bringing Chip home, we became more confused. Wife and I both cringe at feeding raw. Our collies at home always had plenty of raw to choose from, we lived on a farm. LOL
We have Chip on Iams Puppy with Chicken as the main content, no grain. He is doing great except for eating his poop. Wife gathers constantly. We are considering feeding some Chicken Livers couple times per month. Some folks have had luck with stopping the poo lunches this way.
We bought a bag of Canadae (spelling?) Gradually put small amount into the Iams to see what he would do. Doesn't like at all and will actually leave pieces of it while eating all of the Iams.
Chip is 5 months old now, eats nearly a cup and a half of the kibble per day. He weighs just short of 17 pounds along with slightly over 13" tall. I can still feel his ribs and he is developing an adult dog profile. Also growing "Real" hair down his spine. Beautiful, shiny, wavy, black hair.