Well let's see...
Great SNES games developed by Nintendo or close partners...
Super Mario World
Yoshi's Island
Super Metroid
A Link To The Past
Super Mario RPG
Super Mario Kart
Starfox
Kirby's Dreamland 3
Earthbound
Kirby Super Star
F-Zero
Donkey Kong Country
Donkey Kong Country 2
Donkey Kong Country 3
Super Punch Out!
Am I missing any Nintendo developed or sponsored games on the system?
Now, how many does Switch have so far?
Edit: I forgot about...
Pilotwings
Super Scope 6
BattleClash
Tetris and Dr. Mario
Wario's Woods
Fire Emblem: Mystery of the Emblem
Killer Instinct
Tetris Attack
Fire Emblem Genealogy of the Holy War
Fire Emblem Thracia