I found that really awkward that I have to click 4 times to change game type of servers displayed on QL's server list. It's not so user friendly so I decided to do a tweak for that by using user script. Any feedback will be appreciated. I tested it only with Greasemonkey on Firefox and QLPrism.

Link:
http://userscripts.org/scripts/show/120117

Changelog:
v1.6 (May 21, 2012)
- Added quick filter links for new game types
- Fixed Select None button not working due to change of jQuery lib by ID Software team

v1.4 (Dec 18, 2011)
- Added links to switch between Public and Private servers
- Added 'Favorite star' on the right side that launches pop-up window with customization options of what game types shall be displayed on the bar
- Added over mouse captions with full game type names

v1.3 (Dec 17, 2011)
Version removed due to serious incompatibility with Prism

v1.2 (Dec 12, 2011)
- Added Instagib game types and 'All' filter
- Added auto-saving of selected game type so after restart your last pick will be restored
- Added Auto-update functionality
- Performed a few improvements in the source code

v1.0 (Dec 11, 2011)
- Initial version published