Originally Posted by Jack Tingle
Actually, reflective (non-backlit) B&W LCD was better than early generation eInk in bright-to-normal light. IMO, the latest eInk (Pearl) screens are now better than reflective LCD. In dim light, backlit color LCDs are probably the best, mainly because reading in the dark without a light source is kind of dumb.
Your question needs to discriminate among these FOUR options to be at all meaningful.
I actually find it quite interesting the very limited number of ebook readers using the reflective LCD. Essentially it is only the Jetbook (and Aluretek etc which are for sake of argument the same reader - firmware excluded).