My favourite among my own is this one.
I think it might be the fact that I can use this old favourite lens from the analog days again that contributes to how well I like this one.
Between the 7D and the D3, I have to choose the D3 as the 7d, admirable as it is for its day, has a limited DR and a worse signal to noise ratio. John has done an admirable job shooting around these limitations, especially near the end of the month, but the 12 MP FX sensor wasn't beatable by any DX or APS-C lens for a couple of generations. A 7D Mk II would have given the D3 a bit more of a fight.