I missed this. But Lieber is my favorite of the Appendix N authors. He's also the reason why I love Wererats, Rogues, and the Skaven (Swords of Lankhmar's influence is evident. Especially how the Skaven are ruled by a council of 13).
An acceptable victor. While Tolkien, Lovecraft or Moorcock would have been my preferences, Lieber's importance to D&D and the genre is pretty clear, even if I've never read his books.