You'd already made your decision fivegee before I could add my praise for my Kindle, but now that you have decided, I'd thoroughly recommend the Kindle Paperwhite. I'm on my fifth Kindle, and have recently given up my Fire Tablet/Kindle (I didn't like the Amazon browser).
I can read the paperwhite outside, whereas with all my previous Kindles, the light reflected on the screen so much, it was impossible to read, or in the case of the Fire, see anything else I was trying to do.
To get that feel of holding a book in your hands, look for a cover that opens out so you can hold it in two hands. I only ever use mine one handed (great for easy reading in bed whilst lying on my side
) but my friend likes to hold hers open like a book.
The only downside for me, having a rubbish memory, is not being easily able to flip back a few pages or paragraphs, to remind me of something that happened, or the relationship between two of the characters. I'm sure there's an easy way of doing this, but I've yet to find it