While I've already rounded up the absolute best cosplay of 2016, that was mostly a collection of static images. And I'm just one guy in Australia. Mineralblu went to most of the big cons in the US (and some beyond), and took his video camera with him.
The video below covers 14 conventions from America and Japan, listed in chronological order (there's a full list of the cons under the vid if you want to see where each was).
1. PAX South - San Antonio, Texas
2. Katsucon - National Harbour, Maryland
3. Anime Matsuri - Houston, Texas
4. C2E2 - Chicago, Illinois
5. Momocon - Atlanta, Georgia
6. Colossalcon - Sandusky, Ohio
7. Comicpalooza - Houston, Texas
8. Anime Expo - Los Angeles, California
9. San Diego Comic Con - San Diego, California
10. Dragon Con - Atlanta, Georgia
11. New York Comic Con - New York City, New York
12. Onicon - Galveston, Texas
13. Blizzcon - Anaheim, California
14. Holiday Matsuri - Orlando, Florida