I mean, it can vary, I'm almost through with Dreading's Cherish Perrywinkle video, that one has much briefer audio content(that does a great job pointing out how stupid Cherish's Mom is).
JCS does interesting insight into the technique of interrogation. Matt Orchard and a little of that with good humor, and in general is amazing at presenting the narrative. Explore With Us is FOIAing or some other method to dig up interrogations that weren't previously public, and has good pacing between interrogation footage and telling the events of the crime.
I'd consider those the top tier of the genre(though the JCS team has gone lolcow and decided they aren't going to make content is they can't make them kind of money kid friendly content makes with the same views)
Dreading is upper middle tier, he seems more interested in getting multiple long form videos out than more polished ones, but I think he could be as good as Explore With Us.
EDIT: SPOKE TOO SOON! He ended it with 20-30 minutes of completely incomprehensible whisper talking from the pedo. I dunno if he had subtitles, but that kinda shit is abhorrent content in such long stretches even if you can read what he's saying.