The 2013 MacBook Air 13" offers the same thin/lightweight body, quiet fan and quality manufacturing that made the previous MacBook Airs a success, except this year's model boasts a record-breaking battery life of 14 hours.
Best of the rest
The Windows 8 Alternative
Sony Vaio Pro 13
The Sony Vaio Pro 13 is an excellent Windows 8 alternative to the Apple MacBook Air 13". It's ultra-light and has a superb screen, tons of processing power, great sound quality and over 6½ hours of battery life. It's a device capable of quenching the thirst of the most demanding of ultrabook users. It may overheat at times and has limited gaming capabilities, but this is still a five-star computer.
Asus Transformer Book T300
The Asus Transformer Book T300 is the best laptop/tablet hybrid we've reviewed to date! Whether in tablet or laptop mode, it met all of our expectations (with the exception, naturally, of gaming), and has an ace screen and long-lasting battery to boot. Our only real complaint is the skimpy connectivity.
Asus Transformer Book T100TA
The Asus Transformer Book T100TA is kind of different for a hybrid. It has extremely low performance as a laptop (productivity and web browsing will be all you do on it), but excellent performance as a tablet. Considering the price, it would be a great choice as a standalone Windows 8 slate.