This report from Chitika Insights shows Apple tablets utterly dominate the Web use space, with 78% of the traffic coming from Apple tablets. Amazon is in second place with a little over 7%. Samsung is third, but Amazon's Kindle tablet traffic is growing while Samsung's traffic is shrinking.
The disparity between Apple users and every other tablet combined is a testament to Apple's tightly integrated hardware and software and the company's attention to the user experience.