For sure, my granddad almost always cleaned bream and crappie whole, scale them, gut them, cut the head off. He always thought that filleting them was wasting fish. Always had the tails on them, fried, they are good!
Speaking of blue cats, the blue cats from Grand Lake are one of the best eating fish around, in my opinion. I'll take them over crappie and walleye which are next on my list. I can eat whites, stripers and hybrids, but they are down on the list.
Did a fishing trip up to Ontario about 20 years ago, we were mainly targeting pike, but in the evening we'd jig up walleye and yellow perch. We kept some small pike, they were the best eating of the three, only problem is those darn Y-bones.