Keynote is better then PPT in so many ways. For docs we use google docs because of the collaboration or the wiki. Evernote for everything random. Excel is still kill app however for most things numbers and Google docs is coming close.
I'm curious, have you tried out OneNote??
I find the structure of OneNote an improvement over Evernote in many ways.
Not the new version. Your comment has prompted me to plan to have a look at it, however I have a ton invested in Evernote so it is going to have to be so much better to force a switch. Thanks!