Adventure Time is absolutely awesome.
Also: AT >>>>> RS

It's more relatable

Nope, I'm not kidding. I guess maybe I've seen the name before, but I've never watched it or heard anyone talk about it. Sounds like something that's probably popular with a certain age group but not with people outside of that group.

It's awesome for every age group though.

Anyone who prefers AT is lying to themselves. Although I stopped watching it quite a few years back, I still watch RS quite a bit.

But I really can't mention cartoons without plugging how flawless Rick & Morty is, seriously people.

Regular Show hasn't been good since season 2, what are you going on about? Adventure Time stays fresh and reinvents itself every season, yet RS kees falling back on it's own clichés over and over anf keeps getting duller along the way.

This.

How does it feel to be so wrong?

I just watched an episode because of this conversation. It didn't really do it for me. I assume it's supposed to be funny, right? Like a lot of other Cartoon Network shows, it felt to me like it was playing on tropes and aesthetics of video games and kid's shows that were way after my time and because of that I don't have that gut level reaction to it that someone younger might.

I was initially sceptical as well, since I felt a little too old for it as well.
It is often funny, but also at times pretty dark and philosophical.
The world it builds is amazing.
It takes some getting used to the style, but it's definitely worth it.