I've committed to doing some, as I'm the reason most of those are there.
-wraith808
Congratulations on getting so many 
My interest is very much in an overall system and how each program can fit into that, so mini reviews of individual apps would not work for me. Not really a traditional comparative, concluding one is better than another either.
My interest is in a variety of writing - academic papers and books, reports, 'journalism', non-fiction as well as fiction. My observation over the years is that most students and researchers have massively suboptimal methods of managing their information, planning and structuring; OK for a single piece of work but incredibly inefficient if there's a series.
iirc I wrote a paper on the issue 10 or 20 years ago. To mostly little effect. I suspect pantsers proliferate in all fields, but it's harder to make it work with non-fiction. And some just prefer paper.
-Dormouse
There was a piece of software that is not supported anymore, but they unlocked it before they faded- it was specifically for academics, but worked well enough for me. I'll have to try to find it.
UPDATE: That was fast, just found it - IdeaMason.
http://www.bitsdujou...m/software/ideamasonhttp://download.cnet...2056_4-10398292.htmlhttps://ideamason.wordpress.com/about/That sounds like it would work for you. I'd suggest you give it a try.
It's built on the idea that a paper is composed of several different things collected, sort of like what you said. Ideas, quotes, citations, abstracts, summaries, sources- you store them and categorize them, and you can use them in different fashions to make a composition out of the parts- complete with cites. It was way more than I needed, but did work for me for writing also.