Zelda BotW - 10
Mario Kart 8 Deluxe - 9.8
I am Setsuna - 8.6
Fast RMX - 8.6
Snipperclips - 8.4
Snake Pass - 8.2
World of Goo - 8.1
Super Bomberman R - 7.6
1-2 Switch - 7.0

Disgaea 5 will probably end up as a 9.1 for me.

Breath of the Wild - 10/10
Mario Kart 8 Deluxe - 10/10
Puyo Puyo Tetris - 8/10
Snipperclips - 7/10
I am Setsuna - 6/10
Shovel Knight Treasure Trove - 6/10

Ask me when I have more games to test out on it: haven't picked up indies yet and I'd rather give a better thought on Mario Kart 8 D after I do something about that left joycon.

Zelda BOTW: 10/10

The Legend of Zelda Breath of the Wild: 402/10 (that is my current Korok Seed count , just a way to say, is that good of a game)

Shovel Knight Treasure Trove: 10/10

Wonder Boy/Girl: The Dragon's Trap: 9/10

Fast RMX: 8/10

Snipperclips 8/10

 Super Bomberman R: 7/10

Still have to beat Blaster Master and World of Goo.

Breath of the Wild: 10/10. One of the best games ever made.
Mario Kart 8 Deluxe: 9/10. Mario Kart 8 was the best Mario Kart aside from the battle mode. So, now this is the best.
1-2 Switch: 6.5/10. Really good game to show the Switch to friends. Would have scored higher if there were either more content or a lower price.

WIth 5 being neutral in terms of quality
The Legend Of Zelda: Breath of the Wild : 9/10
Best Zelda after A Link to the Past. I can seriously get lost in this game and the open world is just amazing. It has a lot of flaws but it is still an amazing game. I will be playing this years from now.

Super Bomberman R : 8/10
Fun fun game. The multiplayer is very fun. The single player is alright. This was my default multiplayer game for the Switch

Binding of Isaac Afterbirth + : 7/10
I need to play this more. It is fun no doubt. However it is not above an average good game.

Has Been Heroes 6/10
It is a $20 game so it is hard to not like it. This game will give me the playtime and it is fun enough to get me there.

Puyo Puyo Tetris : 9/10
Awesome game. It has an awesome Single and Multiplayer modes. I cannot stop playing this when I turn on my switch. It is my default multiplayer game for the Switch.

Disgaea 5 : ?/10
I don't have this game yet. It comes in tomorrow so I will update what I think of it when I play it.

The only must haves to me are Zelda and Puyo Puyo Tetris. Everything else is nice to have category.

Edit: I played 3 and a half hours of Disgaea. The learning curve is very steep. I don't think I ever had to learn so much. I still have fun but I am in the I have no clue what I am doing mode.

Breath of the Wild: 9/10

Mario Kart 8 Deluxe: 8.5/10

Shovel Knight: Negative Infinity/10

1. The Legend Of Zelda: Breath of the Wild - 10-/10
2. Shovel Knight Treasure Trove - 8+/10
3. Fast RMX - 8/10
4. Snipperclips - 8-/10
5. Kamiko - 6/10

Breath of the Wild - Nintendo's greatest achievement in game development. There really is no comparison. Only a handful of games reached this level of excellence in their times, and among them are Super Mario Bros 3, Ocarina of Time, Super Mario Galaxy, and now Breath of the Wild. The greatest game to ever grace a gaming console.

Super Mario Kart 8 Deluxe - It's the same game as the Wii U version with a lot more content and it seems brighter, smoother, more colourful... but I am likely just not remembering the Wii U with the same amount of shiny joy the Switch gives me.

 
Disgaea 5: Complete - I require more time with this game.