If you care only about the number of teams that are in your sports games, then sure, FIFA is king. Until I played Pro Evolution Soccer 2014 at E3, I was still convinced that I am a "FIFA guy." That might be changing, now that Konami has introduced the Fox Engine to the series, which is being used to generate facial textures and animations in a more lifelike manner.
Sports game developers traditionally don't have the resources to commit to rendering lifelike emotion for in-game athlete's faces. In the case of games such as FIFA or Madden, expressions on athletes waver between lifeless and lifeless-with-an-open-mouth. Truly, one of the biggest tangible ways to convey the excitement of scoring goals or making crucial mistakes lies in generating that emotion through the athletes that players interact with, not unlike viewing sports broadcasts in real life.