Well, I'm sat here with both at the moment.... One of them will be returned.
First up, they are both great, fast, light, easy to use, etc.
The iPad is, well an iPad, the screen design etc speaks for itself. The Note 10.1 is the same size, but a 16:9 screen which give you the impression its smaller, but its not.
The Note 10.1 2014 is solid, and as I've said previously, with the specs it should in theory eat the Air for breakie..... But it doesn't. Maybe its because it has more pixels tro push around....?
The S Pen is handy, more so than I thought it would be, and the familiar Android experience is good.
I wont go into too much detail, there are hundreds of reviews/videos out there.
But, I honestly think the iPad has the edge, the quality of the apps are just much better. Android phones are the way forward, but iPad still rules the roost when it comes to tablets. IMO of course.
Once the Play store catches up with Apple for quality and such of Tablet apps then it will be a different story. This does annoy me tbh, as its always seems developers 'try' a lot harder with iOS apps compared to 'Droid apps.
As for the N7 Historian, its stock android which is no bad thing, but 'only' a 7" screen. So it, to me is too small. My phones 5".