It's all relative though. I certainly think this year beats the first half of either 2018 or 19.
For comparison, from wikipedia (I know, but at least it catches up most games, I removed the smallest indies) for Q1. We can't compare H1 yet when there's no schedule past march for this year. Both JP & Western regions.
I included 3DS games as that platform was already dead anyway. First Party is published by Nintendo.
2018 Q1:
- Third party: The Escapists 2, Darkest Dungeon, World to the West, Lost Sphear, Celeste, Night in the Woods, Steamworld Dig 1, Aegis Defenders, Dragon Quest Builders 1, Owlboy, Radiant Historia (3DS), The Longest 5min, Fe, Layers of Fear, Pac-Man CE 2 +, Outlast 1, Payday 2, Fear Effect Sedna, Scribblenauts Showdown, The Princess Guide, Flinthook, Attack on Titan 2, Shantae and the Pirate Curse, Atelier Lydie&Suelle, Outlast 2, The Alliance Alive (3DS).
- First party: Kirby Battle Royale (3DS), Bayonetta 1+2, Kirby Star Allies, Detective Pikachu (3DS).
2019 Q1:
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Third party: Tales of Vesperia Definitive Edition, Onimusha Warlords HD, The Walking Dead: Final Season (ep 3-4), Travis Strikes Again, Pikuniku, Dragon Marked for Death, Wargroove, Etrian Odyssey Nexus (3DS), Blazblue Central Fiction, The Liar Princess and The Blind Prince, Final Fantasy IX, Steins Gate Elite + 8bit Adv, Phoenix Wright Ace Attorney Trilogy, The Lego Movie 2, Trials Rising, Swords and Soldiers 2, ToeJam & Earl: Back in the Groove, The Caligula Effect: Overdose, Baba is You, Fate/Extella Link, Super Robot Wars T, Unravel 2, Final Fantasy VII, Atelier Nelke, Power Rangers Battle for the Grid.
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First party: Fitness Boxing, Mario & Luigi: Bowser's Inside Story (3DS), New Super Mario Bros U Deluxe, Tetris 99, Kirby's Extra Epic Yarn (3DS), Yoshi's Crafted World.
2020 Q1:
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Third party: Atelier Dusk Trilogy Deluxe, Puzzle & Dragons Gold, The Walking Dead S2 & S3, Oddworld Stranger Wrath HD, Kentucky Route Zero, Thronebreaker: The Witcher Tales, The Dark Crystal Tactics, Florence, Darksiders Genesis, Snack World Gold, Warriors Orochi 4 Ultimate, Warface, Devil May Cry 3 SE, Double Dragon & Kunio kun Retro Bundle, Katana Kami: A Way of the Samurai story, Persona 5 Scramble, Under Night In-Birth Exe Late clr, Megaman Zero/ZX legacy collection, Rune Factory 4 Special, Samurai Shodown, Two Point Hospital, Metro Redux, Langrisser 1 & 2, My Hero: One's Justice 2, Doom 64, One Piece Pirate Warriors 4, Saints Row 4.
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First party: Tokyo Mirage Sessions #FE Encore, Pokemon Mystery Dungeon Rescue Team DX, Animal Crossing New Horizons.
Q1 is usually barren every year for Nintendo in terms of first party, regardless of if there's a big game (like AC this year) or not.
The big difference in third party is Atlus not being there compared to 3DS in 2018/19, but I'd say this year has the best third party content yet. Last year was the best in terms of port/remastered content.
Of course AC fans would be happy this year, but in terms of first party, it's the year with the least content between those three.