Holy shit.
Sockeye is by FAR the best salmon out there. Nothing else compares. Then spring/chinook, then coho. Anything else like Atlantic or chum is only good for smoking, and then, not very.
Farm raised fish is terrible.
For west coast non-tidal fish, steelhead and kokanee can't be beaten. Rainbows and other interior lake salmonids are good, but can taste "muddy" due to algae contents in the lakes and can have mushy flesh in warmer lakes.
With all fish, the fresher, the better.
I'm not going to get into walleye/pike/pickerell/jack fish/bass/halibut/snapper because this thread is about salmonids.