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Volband just think, Dexter's final episodes aired the very same night, moments after Breaking Bad's final episodes. The Dexter subreddit was so fucking hilarious that whole time and, I'm not even kidding, rather than bothering to post an episode discussion thread the mods just stickied an Ozymandias discussion thread the night it aired. It was one of their most popular threads ever.
Breaking Bad got complex human morality right in a way few other series ever have (Mad Men is certainly up there, and Sopranos was and remains the king of it and the model others base themselves off of). The symbolism, the subtleties, the slow burns and flourishes, the acting -- it just had all you need to intelligently and believably craft a compelling cast with compelling motives and intricate identities. Jesse's arc may be one of the best TV's ever had. Him going from an abrasive supporting character who was planned to be killed off and turning into one of the most sympathetic and layered individuals in the series was just amazing, and Aaron Paul's performance really sold it beyond belief.
If you haven't, give Better Call Saul a go -- I was a fan of BrBa from the night S01E01 aired and was extremely hesitant about a spin-off that started as a joke on the BrBa DVD commentaries and writer's room and turned into a real thing, but it's phenomenal and maintains its own identity while comfortably sitting in the ABQ that BrBa created. Same cinematography, same creative talent, and Odenkirk is beyond amazing in it along with Johnathan Banks as Mike. I doubt you'll be disappointed.
Also, while we're talking satisfying conclusions to series -- Michael Hall has the bizarre status of being in one of the most satisfying endings of a series and one of the most insulting endings of a series ever. His HBO show Six Feet Under was superb and many consider it's finale the best out there. It's about as complete an end to a long-running show as I've seen. Sopranos' ending is fiercely debated but is largely seen as genius now and I love it. The Wire wraps things up wonderfully. I guess what I'm saying is HBO knows what they're doing more often than not when they get to a finale. Mad Men's left some sour, but overall was loved and I was thoroughly satisfied by it's final run as well. There are some excellent finales out there, it's just unfortunately nowhere near as plentiful as the awful ones (or all the shows that have no finale at all due to being cut short).