I don't get the hate for Wilner, he's actually one of the most level headed and rational radio personalities on the fan. He definitely has a condescending tone but I'd say it justified by the amount of ignorant callers he gets.
He says stupid things from time to time like JPA being a "fine" catcher and he can definitely be stubborn hearing arguments against his, but he usually puts his ignorant callers in their place most of the time.