5D3 vs 6D

I had not considered the 6D because I didn't realize it had the silent shutter option.  I really want that.  However, there's also the fact that the 5D3 sensor has 49% QE vs 33% QE, which I welcome (although there is reason to believe this QE increase came, at least in part, from a more transmissive CFA).  Last, but certainly not least, my understanding is that the AF will be significantly better.

All these things combine to make me want a 5D3 / 6D over a 5D2 (they are what I felt the 5D2 should have been).

GPS / wifi mean nothing to me.  It's mainly improvements in operation, specifically AF and silent shutter, that I am looking for.

Until the announcement of the 35 / 2 IS, I was uncertain if I'd stay with Canon at all, but that lens has a lot of appeal to me, so I guess I'll stick around for a bit.