The Kinect 2 is supposed to have superior skeleton tracking, so I tested it against the Kinect 1 in a single-camera setup of iPi Studio.

Conclusion: a single camera is always going to have trouble when the actor doesn’t face front, so both tests show obvious glitches. However the Kinect 2 does seem to capture more subtle movements.

Kinect 1 is purple, Kinect 2 is green:

Download FBX files.