I have hah fresh sockeye and chinook from at least seven Alaska Rivers. Copper River chinook are no better or worse than any other early run chinook from a big river. It's pure marketing.

IMHO the finest chinook in the world is Columbia River spring chinook. I haven't' had the Yukon fish, but I bet they are excellent. They come in the river prepared for a VERY long journey. I beleive that's what makes the difference.

I think a sockeye is a sockeye is a sockeye. Pretty color, not much fat.
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No huevos no pollo.