I just received my new Voyage today (it finally became internationally available this spring). I chose Voyage over PW3 mostly because it has page press sensors, weighs less (yes, even so small a difference is noticeable to me) and has (at least by hearsay) a bit sharper text/better contrast. Those reasons may not be all that important to you.
Also, the Voyage is known to have an unevenly tinted frontlight, whereas the Paperwhite is not. Mine has a distinct yellow tint on the upper part of the screen, too. Fortunately, it is really noticeable only in a very dim room, and I almost never read in such conditions. So I can live with it.
And now there are rumours of a new Kindle model, so it's reasonable to wait a bit. Just my luck, of course.
