SCM is right the ingredients are much better in the Wellness, I also prefer the higher protein level. Often crf cats refuse to eat or don't eat as much as they should, so when you up the protein level it gives them more of what they need in a smaller amount. The higher protein also makes the food more appealing, cats eat based on scent & taste, the vet prescription food is often refused by cats because they can't smell anytihing worth eating.
Avoid biting when a simple growl will do
The Spirit Lives As Long As Someone Who Lives Remembers You - Navaho Saying
Vindication ~ For all those pets who became sick or lost their lives from tainted pet food