To quote docsconz, "Who doesn't?"
I join those now suddenly craving deep fat fried fish.
Interesting factoid, according to Wikipedia, is that in non-English speaking countries, the Filet-o-Fish is called FishMac, McFish or Fish Filet. I am skeptical, however, of the Wikipedia claim that a Filet-o-Fish or McFish or whatever has only 400 calories. Every one that I've ever been served always had at least 400 calories of "tartar sauce" on board.
You are right. Wikipedia is wrong. The whole sandwich has 380 calories.
That's according to McDoanld's own website
Of course, that assumes a sandwich with the proper amount of sauce (which is 90 calories of that 380).
Edit to add:
As far as the fish goes, here is what the McDonalds website says about that
Our Filet-O-Fish sandwich is made from white fish from the cold, deep waters of the Pacific Ocean and Bering, Baltic and North Seas. We take pride in the fact that the quality standards we use when preparing fish far surpass federal requirements.