My favorite fish to catch is the northern pike. We had a lake here a couple of years ago that was hot for pike, and few knew about it. My brother, my friend and myself went out in a jonboat and boated 42 in three hours, with numerous hits and missed strikes and non boated fish. Most were around 3 pounds, with some 4-5 pounders. Saw a 12 pounder come out of there. Word got out, and the next year it was overfished to death. Now you can't catch a pike there to save your life.
My favorite to eat would also be the pike for freshwater fish, and hamachi sushimi for saltwater.
I also like grilled tuna steaks.
J