Also, the noise in a Canon is monochromatic, Nikons is RGB.
I just want to say that what I quoted is also completely backwards. Canon noise is RGB. Nikons produce essentially no colour noise.
All the stuff you said about noise before the quote is also wrong until you talk about full frame DSLRs, but I think someone else has already beaten me to it. Using APS-C sized sensors, Canon is sliiightly better than Nikon, which is sliightly better than the others, but not enough to notice in print, or even on a computer screen unless you zoom in to 1:1. The 5D is the best camera, or at least it has the best image quality. Maybe 2nd best. I like the Fuji S5 Pro, which uses Nikon's F-mount.
If you're looking at the typical DSLR, then there is very little difference between a Canon and a Nikon, except the ergonomics. Lenses are comparable in labs and reviews and such, but shooting the same photo with a Canon and Nikon will produce a different photo, and so far, I enjoy what I'm getting out of my Nikon.