Reading Gadgets Available in the Market - Which one is the best?

Hi,

I have listed the gadgets available in the market. Incase, I am missing any of them, please add the same. Which one do you possess and think is the best? 

• Onda Communication – MyTitle
• Amazon - Kindle
• Barnes and Noble’s - ’Nook’ device,
• Apple – iPad
• Sony Book Readers
• Foxit’s eBook device, eSlick,
• Alex -Spring Design
• Aluratek - Libre Pro
• Amazon Kindle, Kindle 2,Kindle DX
• Apple - iPad
• Asus - DR950
• Barnes & Noble - Nook
• Bookeen Cybook - Gen 3,Opus,Orizon
• Condor Tech. Assoc. - Egriver
• COOLREADERS - Cool-Er
• DMC Worldwide - Ocean,Tidal
• ECTACO - jetBook
• Elonex - eBook
• Endless Ideas - Bebook Mini, BeBook Neo, BeBook One
• enTourage - Edge
• FictionWise - EBookwise 1150
• Foxit Software - eSlick
• H'mc - E-Book Reader 2GB  
• Hanvon N516, N518, N520, N526
• HP - Thin Plastic Display
• Interead - COOL-Er
• iRex - Digital Reader 1000S, DR800S,DR800SG,iLiad 2nd Edition,Iliad Book Edition
• River - Story
• Italica - Paperback
• Jinke - Hanlin V2, Hanlin V3, Hanlin V5
• JoinTech - JE100
• Koloporter - eClicto
• miBook - miBook
• Plastic Logic -Que Pro Reader
• PocketBook -PocketBook
• Polymer Vision - Readius
• Samsung - e101,Papyrus
• Skiff - Skiff Reader