You might want to read thru this, before making plans on which creek or part of the lake you want to try :

Kentucky Department of Fish and Wildlife Resources - Kentucky Lake - Crappie Movement Study

It's a few years dated, but still gives you a perspective on the different movements of the two species of Crappie, as it relates to time of year/water temps/weather/water level/etc.

Don't overlook the smaller bays, either
My best trip to KY Lake was in early April, many years back. Stayed at KY Dam Village ... and was told by a "local" ---- go 3 bays up the lake and fish. Turned out to be a fairly small bay, and fairly shallow water (6-10ft) with newly flooded field weeds. The Crappie were stacked in that flooded flat ... even though the air temps were in the 30's & it was drizzling rain off & on. My partner & I limited out casting 1/16oz Roadrunners ... the other two guys, that were with us, limited out on minnows (fishing tightline, just where the 10ft depth started rising to the 6ft weedy flat. Three guys in another boat (not part of our group) were also catching 'em pretty good, too. They were all fishing with 3 cane poles apiece, using minnows ... and they had cane poles, minners, & Crappie flinging & flying all over the place, whenever a school of Crappie would pass under them :D (my partner & I just ran circles around their boat, which was anchored, and fancasted towards them and the area around them :p )
Granted, that was back in the day when White Crappie were the dominant species .... but, you just never know

... cp