Now that Apple has launched its 2013 MacBook Air the decision of which model to go for has become harder than ever. In the past it was a simple sacrifice or power and screen size for portability, but this year's models are so similar in spec that it all boils down to weight, size and battery life. There really is no other differentiator. In this article we will help you decide which MacBook Air will best suit your needs.Related StoriesApple devices 'to overtake Windows by 2015'Apple reportedly investigating MacBook Air WiFi bug, issuing replacement units
