Is there a way to see what are the most popular StoryMaps and also how many views my StoryMaps have?
The only place I know where you can see how many people have viewed your story map is if you go to My Content then click on your story map and it should show you the "View Count" to the right of the thumbnail and "Created" date.
You can also provide a Google Analytics tracking number to collect statistics on your story views. See this article for details: Track your story map performance using Google Analytics (beta)
