Is the d4 better at focusing than the d800?

John, I appreciate your first comments in relationship to actually using the d4 and the d800 for fast moving subjects.  Each camera is better at certain things.  The d800 for an example may be a better landscape tool and the d4 a better sport tool.  I tried the d800 for my bird photography by renting one and then sold my d3s and bought the d4.  I wanted the d4 for the fast focus acquisition, rapid frame advancement, build quality, smaller files and high iso performance.  Yes 16 mega pixels is plenty if a person doesn't crop too much.  No reason for me to doubt that the d4 isn't a good landscape camera also when cropping is not done.

Larry