I've created a Google Doc that pulls out all of the unique #1-#3 ranked teams from each regional/district*. Since there's no way to do this quickly, I'd like your help finding the teams that would already qualify despite the rankings (Chairmans, EI, Winners). I've started listing the accomplishments in the "Unique Top 3 Seeds" sheet.
Here's the link.
*EDIT: Except for the Hawaii Regional, since the rankings are missing from FIRST's website.