I've had deep fried salmon. Can't say that I'm at all crazy about a deep-fried oily fleshed fish.
I grew up eating fried flounder and various "trash" fishes in Eastern NC. I love deep-fried oily fish. I lurves me some fried bluefish, spot, or mullet.
I especially love cold fried fish for breakfast the next morning. One of the best camp breakfasts I've ever consumed was leftover fried bluegill from the previous night's dinner and scrambled eggs.
I had fish and chips three times while in the UK a couple years ago. The best was at a little hole in the wall restaurant in London. It looked like a chain, but wasn't anything I was familiar with. It could have been their version of Long John Silver for all I know, but it was damn good. The 2nd best was at a proper pub in London. Not bad, but could have been better. The worst of the three was at my hotel in a small town southeast of London.
When we went to Disney later that year, I had fish and chips at an English-themed restaurant. It was quite good, better than the pub or hotel in the UK, but not quite as good as the "hole-in-the-wall" restaurant.
Chris