Supermarket food

Which is the best cat food from a supermarket? What's the worst?
Which is better felix or whiskas?

This isn't for me, one of my "friends" just got a kitten (from her sister who likes to breed moggies) and I was trying to explain that supermarket food is complete rubbish and she'd be better ordering it from zoo plus etc.

She believes that supermarket cat food is the best, and plans to feed whiska's.
Was just wondering what is the best food you can get from supermarkets so I can suggest it to her.

 

There are some which are better than others. Butchers, hi-life etc.

Do remember though, as much as I would encourage people to read up on food and at least get to know what options are out there, ultimately it's her cat and it's up to her if she chooses to feed it supermarket food. It's not the world's biggest crime