Always start with nothing!
1. Skin and fillet and and cut out the stripes and grill. No nothing. Amazing how good most fish taste with just a little salt.
2. Skin and fillet and and cut out the stripes and fry in fresh light oil; no breading, no nothing. Amazing how good most fish taste with just a little salt.
.
Then...Did you like it? What didn't you like about it? What does it need?
Add: Butter? Lemon? Pepper? Dill? Tartar Sauce? Sparingly
To me, breading obscures the taste, but if you like it find out how you like the fish first.
Always start with nothing!