Of consoles that already had a full lifespan, the GameCube. One of the best line-ups of Mario games (even if there is only 1 platformer), an amazing Smash Bros., Chibi-Robo, Animal Crossing, and some fun third-party games.
If we're going overall and including the Switch (a hybrid), it probably takes it. While it has years left in the tank, it already has a mountain of first and third-party games. A lot of shovelware, sure. But a lot of quality as well.
Top 5 (not necessarily in order)
Super Mario Odyssey, Super Smash Bros. Ultimate, Stardew Valley, Animal Crossing: New Horizons, Fire Emblem: Three Houses
Honorable mention: Zelda: Breath of the Wild
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 122 million (was 105 million, then 115 million) Xbox Series X/S: 38 million (was 60 million, then 67 million, then 57 million. then 48 million. then 40 million)
Switch 2: 120 million (was 116 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima
