I wonder what he thinks of Gutbuster's aka White Castle. I personally like them but it's totally different than the other places mentioned

McDonald's hash browns are also the best of all fast food restaurants and arguably better than those served in most restaurants.

He loves the In-N-Out burger chain, he likes Burger King, but he loathes McDonald's hamburgers
as a piece of lard between two slices of bread.
I do agree that you get a much better burger at Burger King, though McDonald's fries are always great.

Why would the most successful fast-food chain in the world ever do a show with Gordon Ramsey? They would gain nothing from it, and Ramsey doesn't do fast-food anyway.