I don't know what others look at when considering one dog food over another but one thing I strongly consider is kcal per cup because my Vizsla won't eat a lot of food in volume. FWIW, I did a comparison before I moved my dogs to Nutrisource.
PPP chicken and & rice has 488 kcal per cup
PPP Salmon & Rice 30/20 has 534 kcal per cup. I fed this for a while before moving my dogs to Inukshuk. My male Vizsla had issues with it.
Inukshuk 30/25 has 578 kcal per cup. I liked it. My Vizsla didn't.
Nutrisource Performance has 488 kcal per cup. Vizsla approved.
Extreme Dog Fuel 30/20 has 485 kcal per cup
Valupak 30/20 has 492 kcal per cup
Inukshuk has a lot more calories per cup than most and most feed less because of it. Outside of that, most performance dog food are very close in calories per cup and can be similar in ingredients and nutrition but there can be a rather large difference in price per bag or in availability.
Victor Hi Pro Plus(not listed) is pretty popular but only has 406 kcal per cup. Next Level is similar. There are a bunch of others you can buy at the grocery store than have less than 400 kcal per cup. I haven't really considered feeding them....not because they are bad...I just prefer to feed higher calorie/fat food. 450 kcal per cup and 20% fat was sort of my minimum for consideration.