sorry i dont have a statistic agency to quote
the only reason Mw2 / consoles post those statistics is so they can brag about them. suppose they didnt wrap a ribbon around the stats and hand them to you, then what would you be judging it on. how many teams are on a random ladder? maybe 5 teams from the entire ladder you posted could even compete in a finals tournament
Electronic sports - Wikipedia, the free encyclopedia
here are the current set of leagues according to wiki, its easy to see over 1/2 of them are dedicated to PC:
Professional Leagues
E-Sports Entertainment League (International)
Cyber Evolution (International)
Xtreme Professional League (International)
ESL Extreme Masters (International)
Electronic Sports World Cup (International)
World Cyber Games (International)
World e-Sports Games (International)
ESL Major Series (European)
ESL Pro Series (In several European countries)
NGL One (Europe)
ClanBase EuroCup (European)
Total Gaming League (International)
Pro Gaming League (North America)
UKeSA Dell XPS Premiership (United Kingdom)
National Professional Cybersport League (Russia)
Athens Gaming League (Greece)
Team Excrucio (International)
once you realize that pro-gaming right now is established much more on the international scene and is highly underdeveloped in the US (comparatively), you understand how important PC gaming is to the pro-gamers. Just take a look at companies like razer, logitech, and all the sponsoring they do.
StarCraft professional competition - Wikipedia, the free encyclopedia
and then theres kespa which is easily the only working business model for progaming right now. and thats where the 90% of top earners for pro gaming are right now