It's Australia's premier event on the sporting calendar with millions of rugby league fans tuning in every year to watch age-old rivals Queensland and New South Wales do battle over three enthralling contests. 2016 promises to be another mouth-watering year for Origin footy - will the Maroons be able to go back-to-back after their heroics of 2015? Or will the proud Blues side once again taste Origin glory after their drought-breaking win in 2014?