Despite loving fishing for and catching them, I've never much cared for their flavor.
A few exceptions: Steelhead is freaking delicious. Brook trout is too - though to be clear, the species is actually a char.
Smoked cutts can be delicious with a glass of pinot. Golden trout I've eaten in quantities, though there again it may have had much to do with the location.. I think anything tastes good at 11000 feet elevation