I wouldn't go as far as say Ky Lake is underrated at all. I personally know several of the Elite pros, KVD for one and on national Television during the classic, he was asked by Sanders and Zona about the lake he looked forward to fishing this year...the answer....You guest it....Kentucky Lake.
Most guys who are underwater structure fishermen/fisherwomen who like ledges , drops , etc.... love Ky Lake.
I will agree with you that the lake doesn't have the 12 to 15 pounders like some of the Texas and California Lakes has but day in day out this lake ( Ky Lake ) will out produce any of them.
Just right now, the lake is divided into two sections....from the Blood River Area South, it is taking anywhere from 22 to 29 pounds per 5 bass to win first place or even place in the money. North from Blood River to Ky Dam, It is taking around 18 to 22 pounds to win and so on.
Ky Lake is as HOT as it has been in many many years and should be this way for the next 2 years or so according to the TWRA Biologist.