When I watch marathons now it's no longer a nike vs adidas afair now it's become a which Nike athlete will run the fastest. Nike's PR campaingns (whether you like them or not) have worked a treat, I mean hats off they actually have people beliving they care about civil rights when it's all about money, the PR person deserves a massive pay rise. I remember the days when Nike was the biggest and adidas was huge but not as big as nike, seems like adidas are going to the down to the asics levels in terms of western media exposure.
Fun fact: 95 percent of the NBA players are sponsered by Nike.