I have both and I found that I am really adjusting well to my nook color LCD. If you would have asked me a month ago, I would have said eink all the way But after some adjustments to the brightness and the background color, you can really fine tune it in.
I love both techs. never thought I would say that but you really do adjust. My nook eink comes in handy for outdoor reading and my nook color for low light reading.