First...what is your riding style? Waves, free ride, freestyle? All the above?
Second, the 2012 is completely different from the 2013 and 2014.
2012 has quickly become one of the most preferred wave riding kites on the market.
*Light bar pressure.
*Pivot turns on a dime.
*Luffs with no pull when overhead (good for tack transitions).
*Drifts really well.
2013 was a different kite, but better for most riders unless they mostly ride waves.
2014 is much improved on 2013 being quicker turning, tons of low end, jumping is insane.
*Lightish bar pressure.
*Much more stable than 2012's.
*Between arc and pivot turns.
*Pulls like a banshee.
Hard to beat the 2014's unless you ride strapless mostly.
Hope this helps,