If you write much, there is one compelling reason to get a good Android tablet: its voice dictation is exceptional.
I now dictate all my blog posts directly into Wordpress with my Samsung Tablet as well as I'm writing a book directly into Word. If you can get an App for it, you can voice dictate directly into it.
It does take some re-learning to write from the spoken word instead of typing, but it hasn't been a problem for me. Its accuracy is amazing and it's cut my writing time in at least half. I'm a mediocre typist, so my edit/clean up time is probably about the same.
I assume Apple is as good, but I have no direct experience. I'm also well aware that this won't be a selling point to most people.