My original thought behind this question could strike up the old debate, which is better, Nikon or Canon. However, my question is a bit different. Are there unique technologies, functions, tools, etc specific to a brand of camera (whatever that brand may be) that make something about the camera unique and thus in some eyes possibly better. Please note I ask in general and the technology (etc.) would need to be on majority of cameras or if it is a new function then coming to the majority of cameras. (IE: I am not looking for Nikon Model XX which is 10,000 dollars has this function but no others do.) If there are something unique to lenses made by the specific camera maker (again applies to majority of lenses not just one) I would accept that answer also.
The obvious ones that come to mind:
All Canon lenses have built-in motors, so can be used on any body. Nikon lenses are mixed, so if you have a motor-less body, you need an AF-S lens if you want autofocus.
Pentax has image stabilisation built into the camera body, so that it's available for any lens used. I believe you also get weather-sealing at the consumer/"prosumer" level, where Canon and Nikon you only get that (fully) with the professional bodies.
Canon provides free tethered shooting software.
Mirrorless technology, i.e. Sony, which will no doubt change rapidly and may become standard across all brands
flash technology - Nikon had an advantage with its (IR) CLS system, but Canon has just announced radio controlled 600EX