Since 2019 is over and it is now 2020, Funimation did a fan poll where anime fans could vote for the anime they want to win in each of the categories.
Winners
Favorite Shounen series of the Decade: My Hero Academia (2016)

Favorite Shoujo Series of the Decade: Fruits Basket (2019)

Favorite Sports Series of the Decade: Haikyu (2014)

Favorite Sci-Fi/Fantasy Series of the Decade: Steins;Gate (2011)

Favorite Isekai Series of the Decade: KonoSuba: God’s Blessding on this Wonder World (2016)

Favorite Romance of the Decade: Your Lie in April (2014)

Favorite Animation of the Decade: Demon Slayer (2019)

Favorite Companion Creature of the Decade: Happy (Fairy Tale)

Favorite Original Series of the Decade: Kill La Kill (2014)

Favorite Anime Film of the Decade: Your Name. (2017)

Runner ups:
Shounen Anime Series:
- Attack on Titan
- Demon Slayer
- Hunter X Hunter
- JoJo’s Bizzarre Adventures
Shojo Anime Series:
- Banana Fish
- Orange
- Puella Magi Madoka Magica
- Yona of the Dawn
Sports Anime Series:
- Free!
- Huroko’s Basketball
- MEGALOBOX
- Yuri! on Ice
Sci-Fi/Fantasy Anime Series:
- Attack on Titan
- Dr. Stone
- Psycho-Pass
- Sword Art Online
Isekai Anime Series:
- Overlord
- Re: Zero- Starting Life in Another World-
- The Rising of the Shield Hero
- Sword Art Online
Romance Anime Series:
- Fruits Basket (2019)
- Love is War
- Snow White with the Red Hair
- Rascal Does Not Dream of Bunny Girl Sempai
Best Animation Anime:
- Attack on Titan
- Mob Psycho 100
- One Punch Man
- Violet Evergarden
Favorite Companions:
- Chopper (One Piece)
- Dimple (Mob-Psycho 100)
- Hawk (Seven Deadly Sins)
- Pikachu (Pokemon)
Original Anime Series:
- Death Parade
- Psycho Pass 100
- Puella Magi Madoka Magica
- Yuri! on Ice
Anime Films:
- A Silent Voice
- Dragon Ball Super: Broly
- My Hero Academia: Two Heroes
- Promare