Sorry Bvukich, but the general consensus by non-Canon fan boys (ie Independent Testers), the 5D3 got it's a$$ handed to it by Nikon.
Canon needs a real winner, and soon.
Until 2 weeks ago I had the Nikon D700, Canon 7D (sold both to buy 5D MK III).
I almost bought the D800 until I took a few shots at the store at ISO 1600 & ISO 3200, then I also held the 5D MK III and did the same ... my conclusion is that Nikon D800 5cuks cow ni9ples at ISO 800 and above ... yes the D800 is AWESOME at ISO 100 in a controlled lighting environment but NOT in all lighting situations.
For photographers like me an affordable all-rounder full frame DSLR is more useful then the awesomeness of megapixels at low ISO.
During video recording I use Samsung 128GB Series 7 Slate 11.6" Tablet PC (running on Win 7 & Canon EOS Utility) tethered to my DSLR as my touch screen live view / field monitor ... and I've made several videos for my company with this setup. To have the same set up with Nikon I have to shell out extra money for their software.
Contrary to most uninformed buyers (in terms of video performance) Nikon D800e (which sells for US$3300) is closer to 5D MK III (yet D800 falls short of 5d MK III's video performance) ... also Nikon does not give any software similar to Canon's EOS utility for free (instead one has to shell out US$ 135 to get Nikon software) ... so for someone like me the price difference between D800e and 5D MK III is only US$65 .... I am glad I bought 5D MK III at $65 more than D800 and got better video performance and an all round camera that works amazingly well at incredibly high ISO. Another thing that most people (who make purchase decisions on price alone) do not consider is that Nikon glass is much more expensive than the equivalent Canon glass (so whatever price advantage they thought they got from D800 over 5D MKIII, they quickly lose that in the Nikon lenses ... in the end you realize that both cameras, eventually, cost the same).
For me Canon already has a real Winner in 5D MK III
For studio photographers or those who always use tripods, yes there is no equal to Nikon D800 at that price range and it knocks the socks off 5D MK III. But I am not a studio photographer and for my needs I have a real winner in 5D MK III.