[Drupal Views] How to list the most popular taxonomy terms in Views 3 without repetition

In Drupal Views 3 you can use a contextual field argument to do this. Follow the steps below

• Firstly create a content based View.
• After creating the View add a relationship to the taxonomy term.
• Next add the term name field.
• After that delete the node name.
• Add a contextual filter of term name.
• Finally n the contractual filter setting for no value preset set Summary and select Sort by number of records.

Hope that helps.