A camera with balance

Of all the cameras I have kicking around the house, and there is a few, my wife likes the Nikon D90 with the Nikkor 35mm f2 combination the best.  Why?  For her it is the best combination of light weight and compact size, fast auto focus, good low light performance, ease of use with optical viewfinder I have.  

I have cameras that will better the above criteria, but none with that combination.

What about with the 18-105mm zoom?  Too bulky and low light performance is an issue.  D600 and Sigma 35mm f1.4?  Far too heavy.  Fuji X100 or Sony NEX 5n?  AF is too slow, especially in low light.  Leica M3?  Why would you want to shoot film?

Sometimes it's your most unloved camera that some else thinks is gold.

Nikon D600 and Tamron 180mm f3.5 macro