Um...no...
If Nikon is more professional how come you always see those big white lenses on the sidelines at sports games?

I could say that anything not a Hassleblad or that beast that Markus Klinko and Indrani use is not a pro camera.
Having a certain system doesn't make you a pro. Talking about being a pro and recommending one system over another without reason doesn't make you a pro. A pro is someone who uses tools to get the job done and make a living off of it and a camera is a tool.
For some people, Nikons are the best tools because they like Nikon's lens lineup and ergonomics.
For others, Canons are the best tools because they like Canon's lens lineup and ergonomics.
To say one camera system is better than another is just silly and makes you sound like you don't know photography since thats usually the type of argument new photogs get into.
As I said before, OP go try the cameras in store and pick the one YOU like the best, that way you will use it. If you learn about photography, light, composition, etc you will be able to take amazing pictures with ANY camera regardless of brand (nikon vs canon vs whoever) or medium (film vs digital).