[LunarBerry]

I put my girl on Wellness Core (grain free) and try to keep her diet to either low or free of grains. Granted we give her bits of croissant rolls & boiled chicken for her breakfast ^^;; the rolls/breads are the most wheat type grain I will allow her have and only in moderation. I may switch her to the regular wellness (toy breed) that has grains like rice in the food if she and the other two really don't like the adult "small breed" Core later on. So far I love how the wellness is working for my dogs. Ever since I got my yorkie girl, I switched to the wellness for my other two older jack russells, as well (granted they all eat the puppy formula) and they've been eating more hardy than before. We used to have an almost full bowl for almost a week, but now it needs to be filled every other day or so.
Royal Canine I hear is good as well, but so far Wellness has been good for my babies. But if i do ever switch from Wellness in general, I'd most likely go with Royal Canine.