"The 5D3 on the other hand i believe was released because of the pressure of the D800 and i must admit, it doesn't feel like the finished product in terms of features and firmware"
When you say "feel" does it mean you have one? Because when I use my 5dmarkiii it "feels" like an extremely well-built camera. I personally feel it was very very well done and that is one thing that you cant rate with a chart is the ergonomics and general overall build of the camera. The AF runs like butter when you get it dialed in and the overall look, color and picture quality look great.
Everyone talks about DR, resolution, sharpness, but overall how does the whole picture look?! Is it flat? Does it pop? Is it creamy? I think the mark iii excels there.
I cant believe how many people review something they have never used or just used once or twice, or borrowed their friends to try out for 10 minutes. This camera definitely takes a week or two just to get used to the little nuances of the AF, the menu system, the light meter etc... in short - its a great camera. Can it be improved? yes but so can all others.
Bringing it back to the 1dx because im hijacking this thread (sorry) - I truly hope for the price difference there is something better than just build quality and fps with the 1dx. And heres the important point to me: we need to stop comparing between Canon and Nikon obsessively. Its great that it breeds competition and we should compare a bit to push technology BUT instead of looking over the fence to see what the other team has, we should be looking at our OWN cameras and determine what we truly NEED.