2. Epic Sound Design
One of the surprise stand outs of the game was it's amazing sound effects. That was because it was done by DICE, creators of the Battlefield franchise. DICE has a pedigree of good sound that is almost unmatched. When it was announced that DICE would do the sound for Mass Effect 3, I literally couldn't control my emotions. The use of surround, the amazing levels of bass and the sound of those biotic explosions are amazing. It doesn't hurt that the guns sound amazing too. Then there's the voice acting, which is top notch as always. The soundtrack is also the best of the series, with the sad piano music of "Leaving Earth" to the epic orchestral swings of "Reaper Chase" to the more space-like electronica of "Rannoch." Every track was crafted with loving care to fit it's scene perfectly.