How about a spread across genres in no particular order:
Death Note (controversial, considering the ending)
You’re the Worst (underappreciated masterpiece)
Avatar the Last Airbender
The Good Place
It’s Always Sunny in Philadelphia (incomplete, but has maintained a 10)
Breaking Bad, which is worth listing again even though you mentioned it.
I wouldn’t say it’s quiiite there, but honorable mention to Modern Family, which is the best episodic sitcom I can think of. Has some meh moments but starts and ends as a 10.
Absolutely. I believe they shortened the seasons a while back to give themselves more time for each episode, and it shows. On subsequent watches, the newer episodes are just as great as the old ones.