A place to explain your preferences, discuss them, and maybe change your mind.
Some comments on this thread are cross-posted from a text box which appears when you reach the end of the voting process, but everyone is welcome to post here whenever.
You can read about all the candidates here.
I ranked the Shrimp Welfare Project 1st because I think their Humane Slaughter Initiative is the most cost-effective intervention around.
+1 for doing a Fermi estimate, I would like to see more of those.