I think we should only count games that were released for that hardware and not BC and ports right? Because otherwise I think Switch would blow up everything else
2) Switch: WIP, but damn good library. Mario Oddysey, Splaton 2, FE Three Houses, Astral Chain, Breath of The Wild, Animal Crossing New Horizons, and that's just the exclusives there are very good 3rd parties too like DQ XI, Immortal Fenyx Rising, Octopath Travaler, etc
3) 3DS: Solid library too even if somewhat smaller, A Link Between Worlds, Yokai Watch 1 and 2, Pokemon Sun and Moon, Fire Emblem Awakening, Super Mario 3D Land, Kid Ikarus Uprising,
4) DS: Pokemon gen 4 and 5, plus remakes plus Mystery Dungeon (I really like most of Pokemon input from this era), Dragon Quest IX, Phantom Hourglass, The World Ends With You, Yu-Gi-Oh Nightmare Troubadour. I'm ruling out some SNES games I've only played from DS otherwise it would be higher
5) N64: Have some great games there are here, even if they haven't aged that well. Mario 64, two wonderful Zelda games, Star Fox 64, Pokemon Stadium 1/2, Yoshi's Story, Banjo Kazooie, Kirby 64, Pokemon Snap
6) Game Cube: Played mostly thanks to emulation, but here it goes: Wind Waker, Resident Evil 4 (I only know the PS2 version though), Metroid Prime, Resident Evil (game cube version)
7) Wii U: Has a surprisingly tiny but good exclusive library, BOTW, Pikmin 3, Tropical Freeze, Captain Toad...
8) NES: I don't really think their games aged sufficiently well to be played. I find original Final Fantasy ok-ish. I really do like Super Mario 3 though
9) Wii: Mario Galaxy, DK Country Returns and... err... Xenoblade I guess?
Strong disagree on NES games not aging well. Super Mario Bros, The Legend of Zelda, Mike Tyson's Punch-Out!!, Contra, Mega Man, Castlevania, Ninja Gaiden, Double Dragon II, and many others are just as enjoyable to play today for many people as they were in the 80's and early 90's. Millions of NES Classics were sold because of this. And, Nintendo has been able to resell those titles multiple times through Gameboy Advance, Wii, DS, 3DS, WiiU for the same reason. Many of them also have thriving hack/modding communities today, because of how many people enjoy playing some of those titles so much that they want to continue playing them but as new experiences. I myself was amazed recently to find that Tecmo Super Bowl has a community that has contributed so many roster updates that you can play almost any season in NFL history from 1958 to today. You can even play seasons as the CFL, or the defunct USFL and World Leagues.