This poll does not seem to fit my situation.
I have the following devices:
Franklin Bookman 901
Palm TX 3
Cybook Gen 3
I have also used a Fujitsu 1000 and a Fujitsu 3400 for ebook reading.
The Fujitsu 1000 is very old and heavy but I could read it outdoors because it had a mono transflective screen.
The eBookwise 1150 beats them all in terms of ergonomics and ease of use. I just wish it had an e-ink screen.