Microwave ovens are much maligned by those who believe that they don't have a place in 'proper' cooking but there's one thing that they cook better than any other method can: Firm-textured fish.
Salmon cooked in a microwave is moist and full of flavour. For me it's by far the best way to cook it. The next best would probably be to poach it. Using a conventional oven is fine, as long as you remember to wrap the fish in foil. Frying? Never!
For crispy fillets, get a frying pan really hot, then wipe the inside with a smear of oil using a kitchen paper towel. Place the fillets in the pan. Shake the pan from time to time. Once the fillets become loose, turn them. Shake the pan till they become loose again, and the fillets are done. Crispy on the outside, moist within. Don't try and turn them before they become loose on their own, since they'll be sticking to the pan and you'll break them up.