Your Top 10 Anime of the Decade (Unreasonable Rules Edition!)

Yeah, this is a tough one... especially when I prefer older anime over anything made in the 2010s. That said...
  1. Steins;Gate (2011)
  2. Shiki (2010)
  3. Nichijou (2011)
  4. WataMote (2013)
  5. Aku no Hana (2013)
  6. Happy Sugar Life (2018)
  7. Madoka Magica (2011)
  8. Hourou Musuko (2011)
  9. Death Parade (2015)
  10. Monogatari Series: Second Season (2013)
Never got around to posting in this thread lol

- Laid-Back Camp
Did you really expect anything else?
- A Place Further than the Universe
The big sad [Jukki Hanada Edition]
- Symphogear
No thoughts, head empty and a determination to fist
- Sound! Euphonium
Thanks KyoAni, for everything
Darling in the Franxx wishes it could be this good
- Mob Psycho 100
The big sabunga
- Anohana: The Flower We Saw that Day
The big sad [Mari Okada Edition]
- March Comes in like a Lion
Just let my boy be happy ;_;
- BanG Dream!
I'm so weak for these idiots
- Keijo!!!!!!!!

And if I may have an extended top 20...
Hugtto! Pretty Cure
Girls' Last Tour
Land of the Lustrous
Made in Abyss
Macross Delta
Bloom Into You
Girls und Panzer
First post. Here is my list.

full metal alchemist
in this corner of the world
space brothers
silent Voice
ouran high school club
paradise Kiss
a victorian romance Emma
Not to ruin your first post but of your list only 4 are from 2010-2019. Bending the rules quite a bit there lol
Madoka Magica
Hunter x Hunter 2011
Kill la Kill

I haven't seen much anime yet though, but those are my favs so far from the 2010s.
Sound! Euphonium
Showa Genroku Rakugo Shinju
Attack on Titan
The Disappearance of Haruhi Suzumiya
Starblazers 2199
Rascal Does Not Dream of Bunny Girl Senpai
A Silent Voice
Madoka Magica
My Love Story

This was difficult. It's been a really strong decade for anime (well, aside from the isekai plague, but every decade is over-saturated with something).
I keep thinking I've already posted in this thread for some reason. Oh well. In no particular order:

Laid Back Camp (Yuru Camp) - made me care about an entire genre I had no interest in
The Woman Called Fujiko Mine - the most interesting thing to happen to the Lupin franchise in years
Mob Psycho 100 - Reigen is my spirit animal
The Tatami Galaxy - still my favourite Masaaki Yuasa anime
A Place Further Than the Universe - the central idea feels kind of ludicrous, yet the show made me absolutely believe in it
Jojo's Bizarre Adventure - you dare to approach me?
Death Parade - proved equally rewarding on repeat viewings
Jormungand - dismissed at the time, but found the unusual subject matter very engaging when I went back to it
Devilman Crybaby - not sure I'd want to do it again, but man, that was a trip
Barakamon - it me.