I don't have the decades of Drum Corps viewing experience that many forum members have, so I'm going to take a slightly different approach to the notion of "emotion" than what the OP talked about. For me, something that is emotional is something that makes me want to cry, whether out of sadness, happiness, sweetness, etcetera. So...recent shows that generated that kind of emotion in me are the following:
2014 Blue Knights "That One Second"
2012 Bluecoats "UnMasqued" I didn't see the next show live, but ####...you can FEEL the emotion just by watching the video.
2008 Phantom Regiment "Spartacus"