My company recently hosted a programming competition for schools across the country. One team made it to the finals using the Python client, one of the four default clients provided (I wrote it). Most of the other teams were using Java or C#. Guess which team won?
*This is a link to a Vimeo recoding of the finals. Vimeo doesn't always work in Firefox, though.
The source for all the clients is here, if you're interested: http://www.windward.net/codewar/2013_01/windwardopolis.php