Mjölnir;34088839 said:
Yes, since he wasn't supposed to be the focus he of course is not as detailed as some villains that are the main threat.
If you boil things down as to Ultron just being a sentient machine trying to destroy then almost no villain is unique. On that level The Joker isn't even unique. What makes Ultron unique compared to the examples you mention is that he's so different personality-wise. You won't be unique with your trope (and you're most likely using a trope in a superhero movie), you're unique with the spin you put on it.
I don't think the problem with Apocalypse wasn't a quick introduction, what his threat was, or in general how he was used. It was that he consistently had such boring scenes. Nothing interesting to say, not a good performance out of Isaac, weird powers and a bad look. If those things would have been good he would have worked, despite that there are other issues with the script regarding his work.
None you mention ever got to the point of scary in my view, except for maybe Kilgrave at his worst. I just don't think the superhero genre produces villains like Hannibal Lecter, John Doe or Anton Chigurh. I don't think it needs to in order to make great comic book movies though.
Ultron's personality isn't unique though. He talks like many of Joss Whedon's villains of the week did. He is witty, self-deprecating, and has a sense of dry irony while really wanting a hug. Whedon has created far better villains in the past than Ultron.
His plan is "I will destroy the world." I am not sure why you are comparing him to the Joker. At least as how Heath/Nolan did it, he was an ideological lone wolf terrorist who simply wanted to create havoc and destabilize society because he could, and did so with an ideological/philosophical POV to prove. Actually, in the realm of superhero movies and blockbusters in general, it was startlingly unique, which is why it did scare so many viewers, as well as how it intentionally mimicked real life fears about terrorists and random shootings.
I would go so far to say the Ledger Joker is definitely on the pantheon as villains like Hopkins' Hannibal Lecter, Christoph Waltz's Hans Landa, Javier Bardem's Anton Chigurh, Daniel Day Lewis' Daniel Plainview, and Louise Fletcher's Nurse Ratched.
... After all, like all of them, he won an Oscar for his portrayal of villainy. That's rare company.
As for the Ultron/Apocalypse comparison, they both are introduced rather swiftly and almost immediately go, "I will destroy the world!" for reasons that when Whedon/Singer talk about them sound intriguing, but in the films are muddled and glossed over. Additionally, they both have a horrible scene where they "learn" about the history of the world in a few seconds. Apocalypse's is probably worse because the dialogue is so on-the-nose "Learning!" with a hand to the TV, but Ultron reading the whole internet in 10 seconds and then "killing" JARVIS is not much better.
They both assemble a team too easily and under dubious means that are filled with mutants (

), and then said teammates betray them. They also are defeated rather easily. I would even say Apocalypse put up more of a threat since it seems implied e would have at least survived the fight if Jean hadn't gone Phoenix, the Avengers didn't break a sweat fighting Ultron's minions, and Quicksilver only died because the plot bent over backwards to make it happen.
I understand if you prefer the visual aesthetic of Ultron (he does look better) as well as the performance (I think both were too underserved by the script to tell), but eh. I think at least Apocalypse had one scene where he was quite intimidating and reached the insidiousness Singer wanted. Granted, using Beethoven's 7th Symphony automatically makes anything more epic, but Apocalypse launching all the nukes into space both spoke to his vanity (he hated how the 20th century worshipped nukes as false idols, so he disposed of them), and informed his God Complex.
Ultron never had a badass moment like that. But tomato, tomato. Both were in the title of their movies and both were underwhelming.