I've used both OneNote and Evernote, in fact I pay for a subscription to Evernote premium and have done so for a few years. Still, I use OneNote *all* the time since Evernote is blocked at the firewall by my current and previous employers. So, getting a native Mac OneNote will go a long ways to move me to using a Mac at work on a daily basis.
Besides, comparing OneNote and Evernote isn't fair. They're totally different products, different feature sets, etc... Personally, I use OneNote a whole lot more and find it much more useful. There's a few advantages to Evernote, but not that many.
I chose your "they're totally diff products, diff feature sets" quote because after two years of playing with OneNote I still don't "get" OneNote's feature set, and I've never related to the visual confusion of the multiple ribbons and the whole interface. It just intimidates me too much to dig very deep into.
And having been debating, downloaded Evernote after reading most of this thread. Not only do they have excellent demo materials on the site and a whole easy to access set of other learning materials, the program itself has a clean, basic design that encouraged me to master all the presented tools within an hour.
And for my purposes, I'm getting more done with a program I understand better after two days than my years with futzing with OneNote.
In fact, I created a "using Evernote" notebook an hour ago, and have been clipping in some of the best tips and comparisons from this thread into it.
Along with a number of other tasks I've been kludging in Word, saving lots of screenclips in folders, forwarding emails to my ENote, etc.
It reminds me of a concept program that came out (or was at least announced) in the DOS days called
"I know it's in here somewhere!"
And that's THE program I've always fantasized about having even without a clue of what it would be or look like.
And this isn't it YET, but for quite a few purposes I think it's gonna be for me.
PS: Tag, tag, tag as you go and you should always be able to find anything....
PPS: Crucify me for not geeking out the whole ON interface, but time is precious and after 25 years of personal computing and the continuing rapid evolution of everything, I'm not about to memorize a bunch of shortcuts and work through 200 immediate options for every damn program that comes along.
PPPS: Evernote has taught me enough about what these programs ARE already, though, that I probably already know a lot more about OneNote than a few days ago, and I do have a bunch of a few kinds of junk in there...