macfly said:
scalesusa, you say that "Right now, Nikon has not uped the ante"
This can only mean you are not working with these two side by side, Nikon has left the EOS 1Ds MkIII for dead with the D3s. I can promise you Nikon are blowing Canon away right now. The quality, the low light ability, the incredible ability to run tethered shooting bursts of 30+ frames non stop with Capture One, and the amazingly sharp glass.
The difference is as great as the one Canon made with the original EOS 1 which got me, and everyone else, to sell my slow and awkward F4 and make the switch to Canon.
The appaling mess of the G12, which I hate, after the G10, which i loved, has really put me on alert that Canon may well have lost the plot, and not be listening to people who work with the things everyday.
To be fair, though, the 1Ds Mark III vs. D3s is one fight between the two that Nikon is clearly dominating by a wide margin.
Here is my take on the other matchups:
draw D3000 and Rebel XS (1000D)
D3100 over T1i (500D)
T2i (550D) over D90
draw D7000 and 60D (different approaches, but worthy competitors)
7D over D300s
D700 over 5D Mark II (although very close, and very different approaches)
D3s over 1D Mark IV (price competitors)
D3s over 1Ds Mark III (form-factor competitors, but again very different)
1Ds Mark III over D3x (slightly)
So [in my opinion] Nikon has a 4-3-2 lead over Canon. But at the top, I would give Nikon the advantage. I will follow up my analysis stating I haven't used the vast majority of the current cameras, but it my research online regarding general reviews and overall image quality this is how I see the shaking out.