Collections
Customized pages that may be tailored to your interests (Like you would in Google Docs or Microsoft Word). You can use the built-in editor to name your page, give it a location, and add a description to tell the story with data, maps, and data visualizations.

Favorites 
Acts as a quick way to save and access the tools and resources you use most. While you may save a story card to both the a Collection and Favorites, items in the Favorites page may not fit within the context of a Collection.