Kirby's Epic Yarn isn't even in the top 20 let alone #1?!?!? This list is a travesty!
Wow. I've played way more of the nominees that didn't make it then I have of the games that are part of the Top 20. Played BotW, Odyssey, and New Leaf and dabbled in XCX but always meant to go back. I was only beginning to get through the second (jungle/forest) area when I stopped and never returned.
From the nominees I have played 13 titles: Kirby's Epic Yarn, Super Mario Galaxy 2, Kirby Mass Attack, New Super Mario Bros. 2, Nintendo Land Super Mario 3D World, Kirby Triple Deluxe, Metroid Prime: Federation Force, Pocket Card Jockey, Mario Kart 8 (Deluxe), ARMS, Tetris 99, and Untitled Goose Game. (Kirby Triple Deluxe was a nominee but not Planet Robobot?)