Hi Zinger,
You are likely going to get a ton of different opinions on this question. My suggestion is Kentucky Lake for crappie. I would also suggest Kentucky Dam Marina (State Owned) or The Moors Resort (Private Owned). Good (not steep) ramps and not a lot of hills to walk up and down. I have been down the road with the knees too. They both have restaurants, nice marinas, docks, and extra things to do at or close by the resorts. Best time of year tends to be very late March and the first few weeks of April but that can vary with the weather. Although the big push of crappie are done spawning I like later April and May. There are still some crappie shallow plus a ton of big gills and redears! Anyway that is my suggestion. Good luck and where ever you go have a good time!
Old Guide
Matthew 6:34
Therefore do not worry about tomorrow, for tomorrow will worry about itself. Each day has enough trouble of its own.