Christian Ahlert from Open Business has posted a very useful tool online. This is a web applet that checks the links to a specific licence from Yahoo! and displays the results. Creative Commons Scotland only has 3,074 links to the licences, while England and Wales version 2.0 licence has 69,320. The generic licence is still the most popular. Version 2.0 licences get 7,332,000 links, while version 2.5 get 3,771,100 links.
As far as I can tell, the most popular jurisdiction is Germany, with 375,552. It also seems to me that the most popular licences are still the most restrictive ones. BY-NC-SA and BY-NC-ND.