Well as I said before, assuming the nook works like all the literature says it will - I don't think either one is a bad choice.
It is like saying "What is better? A snickers or a milky way?" Some people will prefer the snickers, some will prefer the Milky Way and some will want both but no matter which you choose the chances are pretty good that you will like your candy bar.
So my advice is to relax and choose and start figuring out what books you want to put on your eReader because that is really the most important part.