Thanks to Bryan and TDP for the very solid and useful review of 6D. I have been waiting for one from the small group of reviewers I feel are trustworthy (so many are just cheerleaders for their advertizers) and TDP was probably the one I most anticipated.
I believe I am going to pick one up. Had been meaning to go FF for a while. I got a little spooked by the talk of the 5D3 struggling for AF in low light, particularly with speedlite AF-assist beam, but other sites say the 6D is noticably better in that regard. The many extra AF points are obviously great for shooters of faster-moving objects, but I have several years before my kindergartener or my baby get too fast for 11 AF points. (Or if they do get extraordinarily swift very young, then maybe they will later buy their old dad a nice camera with their pro-athlete paycheck).
Think I will use some of the savings of 6D vs. 5D3 and get an 85 f/1.8, and maybe wait a year or 2 and see how the new Canon 50mm prime(s) look.