Update: this does sound off-topic, but I wrote it to respond to the conflict that was beginning about the "color palates" of Nikon vs. Canon, a conflict that is fundamentally flawed.
The "color palate" of cameras, lenses, and LCDs which I hear about so often is a figment of photographer's imaginations. The only thing a lens has to do with color is separating between color contrasts (low chromatic aberration). The only thing a camera has to do with color is its AWB. The only thing an LCD has to do with color is its calibration (and color spectrum coverage); miscalibration might result in the color being displayed improperly during playback but has zero to do with the actual image, as someone correctly noted by distinguishing between the LCD and the monitor (although the monitor might also be calibrated improperly).
For example, there was a photo of a bee and sunflower on here. The white balance on that was not quite right. I have done extensive sunflower photography jobs and know quite a bit about it. The bee was OK, but not the background and colors. (I shouldn't judge this though. On the original user's monitor they may have been perfect, but on my precisely calibrated screen they were considerably off.)
P.S. The way to assess "perfect" white balance as I alluded to, is simply to hold a print from your photo next to the original subject. If the colors are not the same, then the white balance is off.
sorry but this is way off topic and in many regards not entirely correct. nikon and canon use different color filters in their RGB-colorfilter array. Thus they cover slightly different colorspaces. This is not just AWB settings that somehow are a bit off. It is about measuring all visible colors with just three representations where Nikon and Canon have diffrent views on how this is done. I bet with some work both systems can get close in regards to color, but it would surprise me if they just slightly capture colors just so that you cant match each others outputs. a strong indicator is that the colormatrices for both systems are VERY different from each other.
On topic: Im truly amazed by this D7100, especially for that price! With the D600 I already was close to switching brands. Fiddling with it at Photokina left me with mixed feelings, changeing the settings was astoundingly counterintuitive. The D7100 is taking the Flak at nikonrumors for having a small buffer(6 pics) and being not completeley magnesium alloy body and other to me minor complaints. I'm eager to see what Canon comes up with in their 70D and 7DmkII.
Of course they can choose to not react and keep selling their "conservative" cameras e.g. a 70D with again 9AF-points or the old 18MP sensor. But this nikon offering makes me again rethink what actually keeps me in the Canon system.
Some, but few!, L-lenses is one thing, handling of the Cameras another and finally: alot of people around me with Canon Glass that can be borrowed if needed. The last two points are very weakly rated by myself.
exciting times for photographic gearheads