Favorite fish? Anchovies, trout, halibut, skate, salmon, tuna, mackerel, you name it. One exception: Mahi mahi. Too sweet, too often too mealy.
And I will eat most fish any way you name, from sashimi to deep fried (had excellent deep-fried, Southern-style pollock just yesterday made by an Asian family that works all too close to where I live).