The reason, imo, that people recommend the Wellness Core RF is because 1. It's grainfree 2. It has a lower than normal fat percentage and 3. It has a higher protein content with that lower fat percentage. It also has a higher fiber content. It has worked for lots of people with dogs that have pancreatitis, but if you feel more comfortable with the Blue Buffalo...it has grains, lower protein and fat percentages, and a decent amt. of fiber...then stick with it, especially if your dog is doing well on the food.