title_body: What are the benefits to different types of frame arrangements?
upvoted_answer: Unfortunately it really seems to be a personal preference thing.
  I tried logging the same move on both pitch and roll on a stretched x frame to determine exactly how much difference there was and I couldn't find any difference in the results.
  Stretched x are generally preferred for racing, but Thomas Bitmatta decided on squished x for his JS-1 frame.
  For definitions:
  
  True X - Symmetrical in both X and Y dimensions
  Squished X - Wider than it is long
  Stretch X - Longer than it is wide
  Deadcat - Wider on the front than the rear
  Hybrid X - Wider on the back than the front (See XBEE MCK frame).
  
  The primary advantage of squished X and Deadcat is that you can keep the props out of the frame of the camera if you are running low camera angle.