(first, sorry for my english level, it is no my native language)
I find, sometimes, Onenote better than Evernote on my PC, for several reasons.
It allows to organize myself a more visual way, like I'm on a paper notebook.
The main Onenote feature I love is the way to hyperlink or tag not only notebook, but each paragraph I wrote. This is something Evernote can't do, at the momen (hope...).
Going on the mobile side make Evernote win by KO with a huge advance. At least for Android I only know, Evernote is full of great feature, while Onenote is weak, poor, not ergonomic, empty of all the features I like in the desktop app : no way to tag, link, filter, etc. In a word: unusable.
That's why I keep with Evernote (desktop and mobile), beacause of the reliable ecosystem it offers.