Buying and Selling Domain Names: What is the Best Domain Name Marketplace?

Like many internet companies, we have been buying and selling domain names for a long time. While Joker has been our very favorite registrar for a long time, we have never really standardized on a marketplace for selling.

What are the best places to sell domain names these days?

We have accounts on Sedo, Snapnames, Flippa, and of course the Big Daddy.

Which one is your favorite?