Is there an overview of the statistics of my different lists?

Yes, you can easily compare the different statistics from your lists.

On the Subscribers page, you can find a well-organized table with the most important data for each list: the number of active subscribers; the amount of campaigns the list was a part of; the total amount of newsletters that have been sent to the list in all campaigns, and the acceptance, open, click, visit, and unsubscribe ratios.

At a single glance, you can see what lists are performing the best or worst by comparison.
You can read more about interpreting your results here.