We switched to Blackhawk just under two years ago. Read some concerning things about Eukanuba and my dogs weren't doing well on it at all. One suffered itchy skin on it. She's been great on the Blackhawk, they all have. Sometimes itchy skin from dry food can be due to the grain content so if your dog does suffer itchy flaky skin, perhaps look at something completely grain free such as Blackhawk's fish and potato, or Artemis is also good.
We are switching slowly to raw now, once I'm confident I have the diet correctly balanced, we will phase out the dry altogether.
My main recommendation for dry foods, which I've been learning lots about in my studies in Canine Nutrition, is to steer clear of any that list "meat by-products". This means parts like hooves, feet and hair of animals, not actually meat not good.
On the label the ingredients must be listed in order from the one that has the highest content to the lowest. Real meat should be the first one. If it's not, then it don't recommend it