I am more interested in the size and format of the device, rather than the technology of the screen.
I can't read a book on a computer monitor or a laptop screen for a long time without straining my eyes, but I don't have any trouble reading on my smartphone or iPod. I do have trouble reading on my iPad.
The best part about my e-ink devices is that they are not too small (like the phone or Touch) and not too big (like the iPad.)
In the scope of this poll, I have no preference or choice.
