[@Exit] Seems we've watched a lot of the same stuff.

Arcane was good, and is probably the best new show on Netflix right now. But I feel it got weaker over time when they were setting up for season two and sometimes the rapid pace of the show prevented certain emotional beats from landing. Like that one bridge fight between two childhood friends might have meant more to me if they had appeared on screen together for more than just two very short scenes. There's more to nitpick about, but it's not really worth bringing up.  

Invincible was also excellent, and had a very powerful final episode to its first season. I think it could have used a lot less Amber though, and it's clear some of the side plots were better fleshed out in the comic. 

I stopped watching Castlevania after season two ended because I didn't really care for where the plot was going, and talking to people who saw season three made me think it probably wasn't for me. I did like Alucard and Belmont's relationship though. He was a Belmont, right? Been a while.

Avatar: the last Airbender was excellent. It did have tonal shifts and felt a bit unfocused at the start, but I also feel like that was partially because, surprise surprise, it was a kid's show on Nickelodeon. Though it does get mature enough later on that really anyone can enjoy it. I was never put off by it. Most of the worst episodes were in season one, but I also feel like it was kind of nice to get the core characters established before the real meat of the story started. Also, the Korean studio did some fine work with the animation. It was really refreshing to see something that while clearly anime inspired, wasn't afraid to be its own thing. Toph best character.

LoK gets a lot of hate, yea. I liked the first and third season while the second and fourth seasons were a snooze fest or bordered on painful. But really every season of Kora had its share of good and bad episodes. Regardless, a lot of the hate it gets is justified. The writing isn't nearly as careful in Kora, and at times the logic is so baffling that even a kid could pick it apart. Once such instance I'll put in hiders, which actually comes from my favorite season. While there are plenty of plot holes/contrivances, I felt like this was a big one given how much the plot rests on it.

[hider=Metal Bending]

Kora is a special avatar because [u]she is the first one to learn how to metal bend[/u]. Something that is frequently brought up over the course of the series is that platinum is too pure a metal to be bent by metal bending. So when she is captured in the later half of season three, they bind her with platinum bonds. And then they poison her, because that's just what villains do. 

After the bad guy is defeated, someone approaches Kora and laments that they have no way to heal her, as the poison has no cure and she's on the verge of death. For a moment it looks like we're not going to get a forth season, but wait! [u][b]The poison is a metal based one![/b][/u] So one of the metal benders that are hanging around her just pull the poison out of her, and she more or less makes a full recovery by the time the next season's first few episodes end.

If the poison was metallic, why did Kora allow herself to ingest it? Why did the bad guys pick a metallic poison if they knew she could bend metal? Didn't they account for the fact that she has a trope of like, 23452345 characters that could bend metal even if she couldn't? If you just wanted to kill her, why not just stab her with a platinum sword, cause a cave in, etc.
[/hider]

And this sort of stuff really breaks one's suspension of disbelief to the point where you become critical of everything. 

Kora also focused way too much on its side characters, to the point that Kora became a side plot in her own show during season four.