Canon and Nikon approach camera design and marketing differently.
Canon's design and marketing is all about hype and pimping their gear. They cram as many mega pixels on a sensor as they possibly can so they can advertise a bigger MP number than Nikon, because they know most people think more is better, which isn't always true.
But, at the same time they leave out features, like spot metering in many of their entry-level cameras, the ability for the point of spot metering to move with the selected focus point in many bodies, a viable off camera flash control system for it's more up scale bodies, across the board color aware metering, users manuals seemingly more geared to people that want to use automatic features.
Nikon seems to be more about usability than hype.