There should be a way to export the complete registration data from the Events platform. The current method of copying the data from the screen and pasting into a spreadsheet is STUPID and far below what I have come to expect from Constant Contact.
When I create the event, all registration data should be stored in a contact list that captures ALL registration information from the registration page.
Full event reporting is available by going to Export from the event dashboard. This will export all information collected. Further work is being done to allow for reports to only include selected fields. We don't have a committed date for when advanced reporting will be launched but we'll provide updates if there is anything shared with us.