Have you ever had FRESH: Yellowtail, Wahoo, Yellowfin tuna, or Mahi Mahi. Caught bled and cooked within a half hour of catching? Some Sashimi style or beer batter deep fried. Making you hungry?? Go sailing in the south Pacific and Sea of Cortez and you can get all those. I ate that diet for three years on our cruise, and can tell you that Halibut is good but doesn’t beat those! Oh yeah, I should add reef Grouper to that list, but it wasn’t quite as good. Fun to shoot though.
I had a roommate who was a diver and several times ate maybe 3 hour old Halibut which was just knockout delicious. The reason I made the comparison is my presumption that Chilean Sea Bass would have to be frozen for US consumption. All those you mentioned are great eating, probably Yellowfin Tuna & Mahi Mahi being my favorites.