Got this from /m/. NHK is running a poll for the 40th Anniversary of Gundam. You can vote for your favorite series (TV, OVA, and Movie only), mobile suit, character, and song. The poll will be running until April 20 and the results will be released on the May 5. Why? How? It's GN Particles, I don't have to explain it.
https://www.nhk.or.jp/anime/gundam/While you can only choose one anime you can vote for up to two songs, three mobile suits, and five characters. Happy voting!