While I like Darth Maul's creepy look and image on a lot of the 2012 packaging the color scheme doesn't work as well as the new, green 2013 design. All that green is just more pleasing to the eye than the red, black and blue Darth Maul boxes and cardbacks from this past year.
One of the most visually pleasing packaging designs in the modern line was the 2000-2002 Power of the Jedi look that was awash in greens and yellows. It just looked so good hanging on store pegs after a year and a half of all that harsh, lifeless red and black Episode I packaging.