Nex7 to nex6? or just get a rx100?
The reports I have read or watched on the new NEX announcements didn't seem to even notice the "faster focusing", which leads to me wonder if it's wasn't that much faster?!?
You appear to have a nice collection of lenses for your NEX system. Guessing you won't go wrong with either the 7 or 6. I'm also guessing you won't see much difference in IQ of the 6 over the 5N. The F3 tested almost identically to the C3.
Can tell you the RX100's IQ is really impressive. It's really good all the way up to ISO 3200. The files appear to be go 'toe to toe' with my 5N.