There were several threads like this in 2017, but we haven't had one in a while, so...

How would you rank your Switch games? What are your favourites and least favourites (and why)? I suppose a lot of people here will have quite a lot of games already by now, but you can just do a top 5/10/20/whatever you feel like.

My favorites have been Valkyria Chronicles 4 and Octopath Traveler.

Botw, hands down best game this gen for me.

Outside the obvious contenders, I have to give a shoutout to Hollow Knight.

Not an exclusive, but easily one of, if not the best indie game I've ever played.

My ranking:

1) The Legend of Zelda: Breath of the Wild
    Obviously. It's also my favourite game period. BotW gave me hundreds of hours of fun with its beautiful open world that's chock-full of stuff to explore and discover.
2) Shovel Knight: Treasure Trove
    A platformer that's strongly inspired by the classics, but one that's actually more fun and creative than all of them.
3) Super Mario Odyssey
    This game is just 20 hours of pure joy.
4) Hollow Knight
    A very well-made metroidvania with an extraodinarily high amount of content for an indie game.
5) Sonic Mania
    This one combines the best of the old Sonic games with lots of new creative ideas.
6) Mario Kart 8 Deluxe
    Still my favourite racing game ever. I might have ranked it a bit higher if I didn't play it so much on the Wii U already.
7) Super Mario Party
    Mario Party games are always a lot of fun, and it seems like this is one of the better ones.
8) Splatoon 2
    Not quite the best game on the Switch, but still a lot of fun.
9) Super Smash Bros. Ultimate
    I don't really like fighting games, but luckily Smash is far from a typical fighting game.
10) Mario + Rabbids: Kingdom Battle
   My least favourite Switch game so far, but that's mostly because I only buy games I know I'll enjoy. Decent game but a little bit too boring for me.

Top 10 off the top of my head.

1. Super Mario Odyssey

2. The Legend of Zelda: Breath of the Wild

3. Kirby Star Allies

These 3 will probably be locked as my top 3 for the console, also my 3 favorite titles of their respective series, all 3 have left a huge, memorable impression on me, displaying the qualities of their franchises at their absolute best, a magical adventure with Mario, every second of it leaving me with a huge smile. A grand, epic open world in Zelda with a ton of fun ways of tackling every element with a lovable cast of characters and a really nice story. And the best celebration and biggest expansion of lore for Kirby, a send off to the RtD style with an ambitious soundtrack that celebrates each main title in a big way and the series' very own Dancing Mad to finish off the adventure.

4. Tales of Vesperia, was a nice replay with the bonus content from the PS3 version, it adds enough to satisfy me but it was already a pretty great Tales of back in the 360, finally got to live the amazing Sword Dancer theme too, so can't complain.

5. Super Smash Bros. Ultimate, World of Light, everything I ever wanted from Smash in that mode, almost makes me want to let slide the bad spots in the roster. Amazing Castlevania and Megaman rep tho. Finally got a City Trial remix in Smash.

6. Mario + Rabbids: Kingdom Battle, been a while since I fully enjoyed an Ubisoft game, but they really put a ton of love into this game, great SRPG and the DK adventure was a great addition too.

7. Iconoclasts

8. The Messenger

9. Celeste

Some really great indies, Iconoclasts fills that void left in my heart from Mischief Makers, reminds me a lot to its quirkiness and really fun boss fights, just with a more engaging storyline, Messenger is a great blend of platforming challenges and metroid style adventure, really great humor. Celeste is a tight, expertly designed platformer with a really nice message and character development from Madeline.

10. Undertale. After replaying it on the Switch, it still stands as one of my absolute favorites in the genre.

1 - DOOM

2 - Ys VIII

3 - Enter the Gungeon

4 - Splatoon 2

5- Bread of the While

Top 5:
1. Splatoon 2 (I am over 800 hours on it, still as fun as I first played it! )
2. Mario + Rabbids (Made me really think a lot which I like)
3. Super Mario Party
4. Pokemon Lets Go
5. BOTW

I am only going to rank the exclusives I have played to narrow the list a bit...

1. Zelda BotW (it released day and date with WiiU so I am counting it)
2. Xenoblade Chronicles 2
3. Octopath Traveler
4. Mario Odyssey
5. Smash
6. Splatoon 2
7. Super Mario Party
8. ARMs
9. Kirby Star Allies

Let it be known that the only game I was truly disappointed with was Kirby. I enjoyed it, but it was short lived and far too easy for the price.

1. Zelda: BotW
2. Xenoblade Chronicles 2 (includes Torna)
3. Valkyria Chronicles 4
4. Super Mario Odyssey
5. Super Smash Bros Ultimate

I don't rate games until I've completed them, but Tales of Vesperia will certainly make the list once I finish it. Special shout-outs to Mario Kart 8 DX and Fire Emblem Warriors, for keeping me invested for dozens of hours each.