Gallery Summary provides the possibility of creating rich displays for hierarchical content. It extends the functionality of Views allowing to attach a set of data to a summary view.
It wasn't possible with Views to create a list of top arguments and attach related content for each one. You can now do this using a new style plugin that will be added for arguments, this plugin will give you the possibility of attach a display of the same view to the argument , in this way you could display the argument name, the number of nodes (terms, users, etc..) for that argument and a preview of the content associated with each argument.
See README.TXT for usage instructions and troubleshooting.