All of them have more variety than Nintendo...
I'm gonna have to contest you on that. Like, Nintendo arguably has the most software variety out of all the game companies. They have games in the following genres:
Third Person Shooter (Splatoon).
First Person Shooter (Geist, Metroid Prime).
Character Action (Bayonetta 2, Wonderful 101).
Action-Adventure (Zelda).
Turn-based RPG (Mario & Luigi, Golden Sun, early Paper Mario, Pokemon).
SRPG (Fire Emblem).
Real-time Strategy (Pikmin).
Survival Horror (Eternal Darkness, Luigi's Mansion).
Turn-based Strategy (Advance Wars).
Water Racing (Wave Race).
Board Game (Mario Party).
Minigame Collection (Wii, Warioware, Nintendoland)
2D Platformer (Mario, Yoshi, Wario land, Donkey Kong).
Baseball (Mario Superstar).
Basketball (Mario Hoops, NBA Courtside).
Soccer (Mario Strikers).
Tennis (Mario Tennis).
Golf (Mario Golf).
Kart Racing (Diddy Kong Racing, Mario Kart).
Futuristic/High Speed Racing (F-Zero).
Snowboarding (1080).
Racing (Excite).
2D Fighter (Smash Bros).
3D Platformer (Mario).
Rail Shooter (Sin and Punishment, Star Fox).
Metroidvania (Metroid).
Rhythm (Ouendan/Elite Beat Agents, Rhythm Heaven).
Point-and-Click Adventure (Hotel Dusk).
Boxing (Punch Out).
Puzzle (Dr. Mario).
Action RPG (Super Paper Mario).
MMO-like RPG (Xenoblade).
Fitness (Wii Fit).
Action (Mysterious Murasame Castle).
Simulation (Animal Crossing, Tomodachi Life).
3D Fighter (Pokken).
And I'm sure I'm forgetting stuff.
Like, outside of Stealth, what huge genres are they missing?
And what 3rd parties cover more genres than that? Only 2 I think have a chance are Sega (who used to be 1st party) and Capcom.
I love when people act like Mario is a game genre
Or when people act like Nintendo is a game genre.