Haha, very funny picture! Did you take that?
Well, I can tell you that Canon is winning on the sports field, I know that 90% of the sports photographer are using Canon, every sports game I go to I see only few photogs are using Nikkon sometimes I see non of them but all Canon user.
The fact is that Canon are making better lens to fulfill sports photog's need, they just produced two prime lens that fit to the basketball photography field so well, the Canon EF 85mm f/1.2 L II USM and the other one is Canon EF 50mm f/1.2 L USM, each lens is about $1,800 USD, they are also perfect for portrait and wedding photogs.
Not that the Nikkon doesn't but the demanding aren't as high as Canon does. Also I kind of get the feeling that Nikkon is going trows compact digital field, they are aiming at the general user that's what I think.
Here's a really good site that reviews all the Canon lenses:
For prime:
http://www.the-digital-picture.com/R...s-Reviews.aspx
For zoom:
http://www.the-digital-picture.com/R...s-Reviews.aspx