Yes, this was actually a very good article summarizing the advantages/disadvantages of the major releases and explaining their rationale.
A very brief take-away: Canon, Nikon and Sony all released excellent cameras. 5DIII got the edge largely because of the range of improvements, including focus and because its excellent low-light performance was deemed more useful and significant than the high resolution of the D800: "...we felt strongly that the Canon produced the best balance across all imaging factors, with Low or better noise up to ISO 12,800, and still acceptable noise at ISO 25,600."
I found this assessment of the D800 very interesting: "Noise is Low or better only to ISO 800, and Unacceptable at ISO 12,800."
From everything I've read and heard about the 5DIII this sounds like a well-deserved honor.