What is the best Kindle e-reader?

Amazon still offers it's fully featured UI even on this budget Kindle E-Reader. You can make notes, look up the definition of words, change the font, size and spacing, and you have access to all the same books and content that the more expensive Kindles have.

It even includes Amazon's X-Ray feature, which gives you a reminder of important people, terms, and images (as well as how many times they're mentioned which gives you an indication of which ones are more important than others). This is really handy, especially if you put down a book for a while and need a quick refresher on who's who.