Since my last post on this topic, I have a boat load of images on the D800 using a 24/1.4, 50/1.4, and 24 TC-E. I have done extensive testing in C1 6.4 as well as LR4.
My results are mixed at best. That is, I am finding that to my eye, the C1 results are more pleasing. I find that using LCC corrections make a huge difference over LR4. Colors look better and my images look less harsh ("harsh" is a subjective description, I know).
However, I like the smoother noise rendering of the LR algorithm better.
Now, I have not seen any more' in my D800 files, but a friend send me a D800E file. C1 6.4 handled the more' which was on the edge of a fabric covered book in a studio shot. LR4 removed the color pattern but left an unpleasant monochrome pattern. Perhaps I don't understand how to work with the LR4 color noise sliders?
All in all, and I am really quite surprised that my initial observations were perhaps too quick on the trigger, but the D800 files that are being produced by C1 6.4 are superb. The LR4 files are very nice as well, but in my view, the edge goes to C1 6.4.
One area that LR4 makes life easy, is with very hot areas such as clouds. I am finding that LR4 handles over exposure much more efficiently than C1 6.4.
Hey, just my completely biased opinion.