Samsung's Galaxy NotePro 12.2 is a fantastic tablet, but its 12.2-inch size and its exorbitant price tag precludes it from being the tablet of choice for the masses. This is a niche product that wouldn't bode well with most people.
Sony and Apple's slates will be the tablets most people gravitate towards. Just a year ago this would've been a no brainer; Apple's iPad would've won hands down. The fact Sony's Xperia Z2 Tablet can go punch-for-punch with the mighty Apple is a testament to Sony's rapid rate of innovation. The Z2 Tablet is thinner, lighter and more durable, but picking between these two tablets isn't a binary choice.
Each of these tablets are as good as each other: if you're a fan of Apple's ecosystem, buy the iPad Air -- you'll love it. If you're a fan of open-source anything, buy the Xperia Z2 Tablet -- you'll love it just as much.
Sign up for Computerworld eNewsletters.