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My question however, is for all the guys saying Nikon's 5D3 match is the D800. Where do you guys get this? Spec-wise, which is what 90% of all people compare when looking at 2 items, the D600 and 5D3 are almost exact equals - ISO performance, AF is a push (IMO), FPS is the same, Nikon offers a crop mode while Canon doesn't. No doubt there is a difference in build quality and that leans to Canon. As for glass, I think the 2 companies are about equal at this point.
The 5d3 and the d800 are not quite the same, but they are the same *level* ie. they are pro cameras with pro AF systems, pro features, pro build etc... They both have advantages and disadvantages and which one you choose depends on the work you do. The d600, great though it is, is a consumer level camera.
"AF is a push (IMO)"
The AF of the d600 is nothing like the 5d3, or even the d800, if that was the point you were making here... See video above.
As for lenses, it depends on your work. If you want a set of high end primes, you really want to be with Canon. While Canon's zooms *mostly* have an edge the difference is much smaller.
If people are comparing cameras just on specs, they're comparing them incorrectly
As for the OP, for someone so new to photography the Nikon vs. Canon tiny differences are totally irrelevant though.