Plus, Rush is enormously entertaining (except when talking about sports, zzzzzzzz). Hannity is not entertaining.
Although I'm not a sports fan, I don't mind when he talks about sports. He at least seems to bring some knowledge to the conversation.
My brain hurts, though, when he starts talking about science, or about economics beyond the "cut taxes" mantra. He quickly gets in over his head.
On politics, he can't be beat.