not one decade, but cross decade.

85-95. that 10 year span included so many memorable shows it's hard to list them all without missing one.

• Gummi bears
• Dragonball
• Denver the last dinosaur
• street sharks
• gumby adventures
• ronin warriors
• biker mice from mars
• tmnt
• Bernstain bears
• bravestarr
• sonic the hedgehog
• care bears
• garbage pail kids
• smb super show
• back to the future
• bill and teds excellent adventures
• legend of zelda
• tom and jerry kids
• bucky o'hare
• capt N
• tailspin
• beetlejuice
• pirates of dark water
• CBS storybreak
• Garfield and friends
• tiny toon adventures
• bobby's world
• darkwing duck
• Strawberry shortcake
• my little pony
• chip'n'dale rescue rangers
• thundercats
• captain planet
• jem
• MASK
• ghostbusters
• the Simpsons
• the adventures of SMB 3
• attack of the killer tomatoes

so many more that I just can't remember or have the time to write down.

Right now, because we also have all the cartoons from the past to watch.

Terrytoons in the 40's and Warner Brothers in the 50's.

The 90s had so many great cartoons: Ren & Stimpy, Powerpuff Girls, Cow and Chicken, Johnny Bravo, Dexter's Laboratory, Simpsons, Duckman, Dr. Katz Professional Therapist, Eek! The Cat, Animaniacs, I Am Weasel, Beavis and Butt-Head

40s/50s. No more black and white bopping characters, before the cheaper limited animations of the 60s. Bugs bunny and Tom and Jerry would stretch, transform and push what the medium could do with huge expressiveness and inventiveness.

I grew up on Transformers, Thundercats, GI Joe, Voltron, He-Man, Duck Tales, Inspector Gadget, The Smurfs, Dungeons & Dragons, and dozens more. They don't all hold up the same 40 years later, but this was basically the last generation of free, over-the-air Saturday morning cartoons.

Late 90's-early 00's. Still had all the old classics, but got Simpsons, South Park, KotH, and Futurama. TV was the only option and so network programming was generally better.

Before my time, it was only Saturday mornings for cartoons.

We still got Lunny toons, Flintstones, and Jetsons regularly back then.

Right now.
Adventure Time: Fionna and Cake.
New Avatar: Last Airbender animated series in the works.
Knights of Guinevere, a show by Owl House showrunner Dana Terrace and crew, looks like it's going to be fantastic.
Lower Decks is some of the best Star Trek out there.
We're getting a Steven Universe spin-off based on Lars in his Space Pirate Captain Harlock era.
And this isn't even touching on all the great stuff in other markets.
The second-best decade for cartoons was the one right before this one, and the third-best is the one before that, because they're all building off of each other.

Everybody here have great suggestions. I’ll add that there’s great cartoon now (maybe more adult maybe ?)

Steven Universe, Infinity Train, Lower Decks, (maybe) Dungeon Meshii, Symbiotic Titan/Primeval/Samuraï Jack (early 2000s).

The 1920s—see The Adventures of Prince Achmed from 100 years ago.

The early 2000s. Last Airbender was the best. :D

Depends on what you consider a cartoon.

I can't pick a single decade either. I'm a fan of the 30's-50's cartoons, in spite of any content/stereotypes that hasn't aged well.

Fast forward a little bit I think the 90's have some of the best cartoons produced, with cartoon network and nickelodeon taking the lion's share of it.

If you consider anime a cartoon too, I would say the 80's is where it's at.

Idk but I feel like anime really peaked between the late 80s and late 00s, both stylistically and content-wise. Even the wackier concepts were done well/with love, but it's been at least a couple of decades that it all feels undercooked and shows that get massive praise today would've been at most Claymore-tier had they come out a couple of decades ago. AOT, an undercooked Code Geass, is a good example of this, IMO.