Length and quality do not correlate at all.
I’m aware. I’ve just encountered the issue before where people dismiss a video as bad simply on the basis that it’s long. I’m sure no one here has that mindset. It’s just one I’ve seen often.
There’s a lot of pro-PT pro-Lucas content (“content”) on Youtube that fits the second category.
Are you talking about someone like Rick Worley or Mauler? Rick Worley’s videos are much more overtly pro-PT and I think they’re well made, though I disagree with a lot of his opinions. Mauler doesn’t really talk about Lucas or the PT much, and I do think he sometimes loses focus in his longer critique videos, but all in all, they’re also well made.
There’s plenty of long-winded, pretentious videos about Star Wars, but they’re far from exclusively devoted to defending the Prequels.