As most of my readers know, I have picked the Canon EOS-5D Mk III camera as the best value in full frame photography today. When the original EOS-5D came out in 2005, I bought it and still own the camera today. I have used the EOS-5D Mk II and the EOS-6D cameras as well and the results reinforced my continued faith and confidence in the Mk III model. Visit my website MichaelDanielHo.com to see travel and wildlife photos taken with all the EOS-5D models.
EPHOTOZINE has put out an interesting comparison of the three cameras. You can read the article here.