JPEG Colors in Nikon and Canon DSLRs (Color Accuracy)

Today I want to talk and share with you my thoughts about the JPEG image colors in Nikon and Canon DSLR cameras, and the difference between the image output results (mostly in JPEG mode). The reason I am writing this post, is that I can't get a straight answer for what I see as a an important part for some photographer, mostly amateur photographer who do care about color accuracy and the