If I was to pick my personal top 5 or top 10:

The Elder Scrolls V: Skyrim
The Legend of Zelda: Breath of the Wild
God of War PS4
Red Dead Redemption 1 and 2 both
Sekiro: Shadows Die Twice
Dark Souls III and I Remastered
Rock Band 3/4
Super Smash Bros. Ultimate
Assassin's Creed IV: Black Flag

Might wanna add like, Pokemon as a franchise since I've loved all of them, especially Sword and Shield.

I got it all, baby! 

PS4, Switch, WiiU, XBO, PC
Vita, 3DS, Android

Top 6 this generation: 
Bloodborne, Sekiro: Shadows Die Twice, God of War, The Legend of Zelda: Breath of the Wild, Dark Souls III, Red Dead Redemption II