I don't know what it is about crappie, but they are by far my favorite fish. I just love fishing for them. They are a tough fish to target because they are so unpredictable; sometimes they are on the bottom in weeds, sometimes rocky structure, sometimes shallow, sometimes deep, often suspended anywhere within the water column.
The reason I like them so much is probably because I grew up in Hamilton, probably the furthest place from crappie fishing in the nation
I went to WI for a few years and just had a great time targeting them. Now I'm still not near great crappie water, but they remain my favorite fish.
In terms of eating them, I find them identical to perch, walleye and gill, which makes them among the best imo, but all fish are for the birds anyway, I wouldn't care if I never ate another fish.