[jarredbehrendt]

Mako, better not eat any freshwater fish from around here raw you could get a liver fluke! I do agree however, the best fish to eat is eaten raw. A little soy sauce to dip it in and yum! With freshwater fish you are better off cooking as the chances of parasites are typically greater.
I would have to agree that fattier fish typcally turn out better with a more acidic cooking method, herbed salmon on cedar planks anyone?
A method for catfish that I have used is to marinate it for a couple hours in buttermilk, with a more fleshy fish like tuna or salmon marinating with wine and soy sauce works well.
I would highly recomend salmon or tuna prepared as sushi, or at least seared. With the fatty fishes either going low and slow or searing (very hot very fast) are the best heat methods while the more delicate fish like walleye are better fried or cooked at a medium pace.
Note though with any fish that if it smells like fish while raw, its bad.