Canon 6D Dominates in Low Light Focusing Test vs 5Diii vs 5Dii vs Nikon D600

An EV of 0 is typically an 8 second exposure at f/2.8 with an ISO of 100.  Your EV of 0 assumes significantly brighter conditions. Is there any reason behind your choice of EV 0 or is it simply an arbitrary one on your part.

Nevertheless, your test does give us a relative appreciation for the focusing capabilities of the cameras.

see http://www.kenrockwell.com/tech/ev.htm and http://en.wikipedia.org/wiki/Exposure_value for further information regarding exposure values.