Build reports in Marketing Activities or Analytics?

I'm trying to understand the difference in creating email performance and email link performance reports in Marketing Activities vs. in the Analytics section of Marketo. What are the pros and cons of each location? The only thing I can think of is that the Analytics section might be better for broad reports that reference a number of programs and campaign folders, whereas the reports in Marketing Activities might be better for individual programs' reports. Perhaps if you had users with access only to the Analytics section then that could be a factor, but our users have access to both. Any thoughts or recommendations?