I'm deciding which one I like best since I try to use very little apps (I've been practicing minimalism). I've always used Evernote, but found the web app clunky and hard to work with. The Mac App store gave me a MUCH nice interface for Evernote and now I use that instead of going to the web, then sync to my iPhone/iPad. OneNote is the ONLY app I miss on Windows. It's not available for the desktop on my iMac but the web app works alot better than Evernote. The formatting shows up MUCH nice on my iPhone that what Evernote does. For example, I large picture I usually use to head my notes auto resizes in OneNote and shows up properly on my iPhone. That same image is too big in Evernote for iPhone and doesn't not auto resize. It seems to retain the image original dimensions. That's sort of a deal breaker for me. The other point gets taking away because the notes within Evernote Notebooks don't seem to collapse. All my notes are there listed and the scrolling is ridiculous. Collapsing Notebooks go to One Note. I do like being able to capture random things with Evernote, then later put the note(s) in the proper Notebooks. I haven't figured out how to do this with OneNote yet. Discuss.