I am little bit confuse to vote which one is the best tablet. I am a user of BlackBerry and Apple. I feel no other tablet is better than these two. Well, and one more thing is I can't judge that how can I vote for the Amazon. I never heard that Amazon has launched the tablet. They are the only owners of Kindle and no one is better that Amazon in Kindle. If I ask to vote my favorite tablet among the above list then I must choose a Apple.