Barnes & Noble Nook GlowLight
While it doesn't necessarily beat the Kindle Paperwhite, the $119 Nook GlowLight is an excellent e-reader that's strongly worth considering if you don't want to buy into the Amazon ecosystem.
Barnes & Noble Nook Simple Touch with GlowLight
The Nook Simple Touch with GlowLight sets the standard for e-ink e-readers going forward and is well worth the extra money if you do a lot of nighttime reading.
Barnes & Noble Nook Simple Touch Reader ( Wi-Fi)
The new touch-screen Nook is a major advancement over its predecessor and offers some real advantages over the 2010 Kindle.
Barnes & Noble Nook Color
Barnes & Noble's Nook Color is a capable color touch-screen e-book reader that offers much of the functionality of an Android tablet for half the price of an iPad.
Barnes & Noble Nook ( 3G/Wi-Fi)
The Nook Wi-Fi doesn't quite measure up to the Kindle in terms of design and overall performance, but it's a worthy alternative if you're looking for a more open e-reader that supports the EPUB format.