>>149441536
Grim Adventures mogs but KND, EEnE, and Courage were like the holy trinity. If we're allowed to count Toonami originals I'd add the original run of Samurai Jack and Megas to create a top 5.

It's either the 1970s or 2020s. The 1970s sucked fucking cock but at least there were a lot of cartoons still being made. In contrast the 2020s are full of mediocre stuff but there's almost fucking nothing, and what little there is being made is almost exclusively reboots/sequels/spinoffs. The 80s started out rough but rapidly improved and the last few years had some genuine great cartoons, while for all the problems the 2010s had it did still produce some genuine gems here and there and at least there were still new properties coming out.