Pocketbook 360 wins hands down. The screen is significantly more contrasty and refreshes faster, particularly with FBReader.

More importantly, you can organize your books into folders on an SD card (I do that with Windows Explorer) and access them perfectly on the PB360.

And the accelerometer allows for page turns by just turning the PB 30 degrees in either direction so you don't have to use any buttons at all.

Look into the PB forum here for more info