Rick and Morty is decent, but it's overhyped. You're missing out if you think those shows (along with many others) are worse than it.

But they are worse, Invader Zim is fun but nowhere close to R&M, some of your recomendations are weird, Johnny Bravo better than R&M... are you serious? 

Nothing tops Steins gate. You should enjoyed Cowboy Bebop, Samurai Champion, Outlaw Star and Darker Than Black.

To be cartoon and anime are two different things


Cartoons which i would say are up there
Ducktales
Jetsons
Flintstones
Gargoyles

Anime
One Piece - i only started watching it in 2015 was never into long anime as generally lot of filler crap but One Piece has held out very well. I can see it going forever tbh lol.
Full Metal Alchemist
Cowboy Bebop

these are probably my top three but plenty other worth watching.

Home Movies, Archer, Cowboy Bebop, Sealab 2021, and many more

Bleach is better than all of them. Also thought the Steins;Gate Vita game was pretty crap.

The general plot didn't change much so that wasn't so bad, the fake little brother thing was dumb yeah but the second half at least brought the story back on track so overall, it was still good since you were still able to follow the story line without going "wtf is happening?" Understand that these things exist to also make money on top of artistic values much like video games but as long as the direction is not totally fucked up then we'd still end up with a good product. I think some people also complained about the Nightmares which is super dumb considering that's how the Knights of the Round fought to start with. It's not like you can fight those things on foot, you'd die instantly against another Knight.

Simpsons in its prime is up there, as well as South Park, IMO. I don't think any anime tops the DB franchise though.

Edit: I forgot about Archer!!

Sigh, why do people keep bringing up Dragon Ball as a good anime when it's not? The original Toriyama manga is way better, the anime was average at best due to dumb fillers that made no sense, fucked up drawing and animations everywhere. Super is just fan service at best, I literally just skip episodes with Super, even a lot of the fight scenes don't make any god damned sense. I wish Toriyama actually did the story board instead of just coming up with general plots for the anime studio and manga author to do their own shit.

I say it's grabage because it is garbage. Rick is just a drunk asshole who spouts cynical bullshit, but 'it's okay, because deep down he actually cares'. They never actually delve into anything deep or existensial; the few times they hint towards that, it's just the setup for a cheap joke. And honestly, I stopped finding toilet humor funny when I was fourteen. There are some good jokes and funny moments; I would be lying if I said there was nothing good about the series. But they are like diamonds in a dung heap.

I watched the entire first season due to a series swap agreement with a friend. He watched the first season of Gravity Falls in exchange for my watching this. I kept my word, but it took a long time and wasn't easy.

So to sum, many series of Western animation are better but I'll mention just a few of the stand-outs: Samurai Jack, Gravity Falls, Batman: The Animated Series, Over the Garden Wall, Teen Titans, Justice League/Justice League Unlimited, Archer, Futurama, and Gargoyles.