Which Win 8 tablet form factor is best for you?

I've been thinking about this a lot, and I was wondering what tablet size and form factor everyone else is looking forward to? Personally, I like the idea of a 7" with a great digital stylus. The other idea I am very much in love with is the whole pull away screen idea with the keyboard being nothing put a giant battery. So together, you've got amazing battery life and productivity, while separate you've got a fun touch screen device. Of course in this scenario, you've got like a 10-12" screen. Anyway, thought it might be fun to see what people want.