Last breakdown I saw was when WILK finished number 1, and the bulk was Rush and Savage, the highest rated local was #4. Not bad, but with no real competition, it doesn't say much.
WILK actually doesn't make money, they are carried by the rest of the group. There is a great amount of difficulty selling it. They tried to hire a dedicated rep, but couldn't make enough money to sustain.
Had a friend who was a rep, and all they had to do was mention WILK and they would get bombarded with anger about Kevin Lynn (back then) and Steve Corbett and a not so polite showing to the door. Needless to say, my friend stopped mentioning WILK and focused on the other stations.
I can only pass on what I was told. While people may listen, many smart local business people won't buy, because being associated with WILK is not an image they want. Former advertisers have actually lost business because of being on WILK. My friend told me a story of one advertiser and after he stopped advertising, one of the locals mentioned his business in a good way, the former advertiser called my friend irate, he didn't even want his business mentioned by the local talk show host at all.