When comparing DockbarX vs Launchy, the Slant community recommends DockbarX for most people. In the question“What are the best app launchers for UNIX-like systems?” DockbarX is ranked 10th while Launchy is ranked 11th. The most important reason people chose DockbarX is:
DockbarX has an available plugin called "DockBarX Xfce4 Panel plugin" that allows DockbarX to blend in seamlessly with the XFCE4 panel, which is great for XFCE users due to the limited options of the default panel.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Great plugin to help blend in to XFCE4 panel
DockbarX has an available plugin called "DockBarX Xfce4 Panel plugin" that allows DockbarX to blend in seamlessly with the XFCE4 panel, which is great for XFCE users due to the limited options of the default panel.
Pro Easily customized
DockbarX has inbuilt settings that allow the user to easily customize the look of the dock, from changing the text color to the background color.
Pro Easily the best Win 7 taskbar functionality
If you want a combined launcher/manager, a la Win 7, this is it.
Pro .deb files available for Debian based distros
For those using Debian based distros Launchy is very easy to install as their website has 32 and 64bit .deb files available. For all other diistros Launchy will have to be compiled from source.
Pro Easily themed with many available on the web
Launchy can be easily themedby placing themes into the Launchy theme folder and then selecting that theme from within the apps settings. There are also many user created themes available which is great for those that want their launcher to match the rest of their OS's theme.
Cons
Con Not actively updated
Less than a dozen updates since 2014: https://github.com/M7S/dockbarx/commits/master
Con Small selection of plugins
The official plugin page on Launchy's homepage hosts just 11 plugins.
Con Abandoned
Launchy was last updated in 2010.