pretty much every device. Quad core is largely a gimmick ... except when it isn't. For gaming performance and pumping out the pixels, the quad-core Tegra 3 in the Nexus is the best performing Android tablet I've touched ... by a lot. [Kindle Fire HD] Amazon Integration : I have loads of Kindle books, Amazon MP3s, subscribe to Prime and mostly rent from Amazon Instant Video on our Roku. So I am pretty well plugged into the Amazon ecosystem. And there is no better way to consume it all than the Kindle Fire HD. [Nexus 7] Google Integration : Amongst my daily must-dos are GMail and Google Reader ... and the native Android apps working with Jelly Bean are the best mobile experience for those services. The same goes for all of the Google play services. [Kindle Fire HD] The Slick UI : I know many are critical of how Amazon has modified the underlying Android interface, but personally I love it. How much? I think that for everything I use the Kindle Fire to do -- ebooks, music, games and movies -- I like it better than any other Android tablet UI. [Nexus 7] Jelly Bean : Until July of 2012 ALL Android tablet OS versions sucked. But suddenly with the arrival of the Nexus 7 and Jelly Bean I found an interface that actually works for a mid-sized device without feeling like an over-sized smartphone. There are interface niggles that remain, but more importantly the internals and services