Another surprise was the lack of natural WHS overall.
I don't think the lack of natural WHS sites overall was for lack of trying by some of us on the board! I know approximately 1/3 of the sites I chose were either natural or mixed sites from around the world. In the top 50 (or more accurately, 53), it looks like the 12 natural or mixed sites chosen approximately matches the overall breakdown of cultural vs. natural and mixed WHS (802 Cultural, 229 Natural or Mixed).
So far I've found I match 51 of the top 53, but I'm still working through the list. While I'm not surprised to see there was no love given to sites like the Par Force Hunting Landscape, the Royal Exhibition Center, or the Turaif Quarter, I am a bit surprised to see there was no one to champion meltwaterfall's nostalgic Holy Trinity Column.