My concern is that I need one note system that is totally system independent. Looks decent on all systems, keeps the same data (preferably as close to real time changes on multiple platforms as possible, on this Google Docs is very strong, I have not tested Evernote.) Google docs, though, seems weak on the notebook-folder-access implementation, at least by what I have seen so far, perhaps there is an add-on. And you can make folders in Google Drive, but Google Docs seems to ignore them in showing you your documents. And Google Keep seems just too weak for anything robust.
Evernote, despite some "blah" elements, seems to cut that mustard really well, if I am thinking of some one program on my tablet, or laptop, and home computer. As a browser program (like Google Docs) it does this well. (And I pin it to the taskbar on Windows.) I can incrementally update it on any of the sources quite transparently. Evernote for me is best for active current notes, maybe 5-10 notebooks, like what am I doing today, or what are the travel notes for the next week or two. I'm unsure whether I would use Evernote much beyond this "current, immediate" sense, for holding documents, work in process, etc. It is not pretty like Notezilla, and does not use real estate that well.
Notezilla shines, for me, as the permanent quasi-complex and handy note system. Remember, you also have the popping up to a webpage, with a good implementation. And you have the Notes Browser systems, which I find stronger than Evernote notebooks (which apparently can be enhanced with stacks.)
And I also use Xerpi as a startpage that holds a bunch of information, however, I cam concerned that it is pretty much abandoned in development, blog and support. It works great, but I recently did not succeed in even trying to change my password. However, no alternative has ever been close as a start page implementation.
Linkman is another general information holder. With massive amounts of info combined with url access. I revolve a lot of my activity around Linkman access. This is often my prime research tool, with careful grouping of related notes through keywords. Then from that comes writing (e.g. Atlantic Word Processor, email, direct to forums.)
Listpro is still pretty good for a simple database.
What have I missed?