Multiple (can be passworded) sections shared across multiple users, with each section having as many pages as needed. You can have an array of highlighting marks, keyboard inputs, diagramming, copy and paste images and picture files, exporting to any major format (a section or page can be exported to .doc, .docx, .pdf) and you can basically draw to a huge degree in a much better form (depending on the device) than in Evernote due to the Ink api on some devices and systems. (things discernable would be varying line strengths for one)
OneNote does have some syncing. I.E. a person contributes to a notebook, about a few minutes later depending on the network, another user can see the synced changes. An interesting thing for the moment, if two people are writing on the same physical location of a page, once synced - both their content would overlap.
Evernote from my experiences on the Kindle fire, is just a simple 99 cent post it notepad to write in in comparison to the "Trapper Keeper" of note taking (and then some). You write stuff in a page, but there isn't differentiating sections, added pages, or insertion of a variety of content, much less a way of sharing things - which can be accessed via web browser or a dedicated install of OneNote.
OneNote, is definitely something I would have appreciated in school and college. It is something I appreciate now for getting ideas down and collaboration in a non linear manner.