Currently Online 
I think no one mentioned women's football so far (as if it never happened):
The US women soccer national team was FIFA Women's World Cup Champion twice, in 1991 and 1999:
http://en.wikipedia.org/wiki/FIFA_Women's_World_Cup
In the 90s the US women's national team was the world's top team - only Germany, Norway and Sweden could keep up with them in one year or another.
The top teams in recent history of Women's football (last 17 years) are in order of success/rank at World Chamionships Germany, USA, Norway, Brazil, Sweden, China & Canada.
In Europe Sweden & Norway are very close to Germany (sometimes superior), other countries like the south European countries, France and England/rest of UK still have to catch up.
If we only look at the Americas (North & South), USA was unrivaled for more than 15 years until Brazil became vice world champion last year.
Brazil caught up very quickly (no surprise to anyone who's familiar with male football). From what I saw last year I think Brazil will be the world's dominating country in women's football in the future.
BTW: The men's football World Cup hosted by USA in 1994 still holds the record for the highest attendance in World Cup history (attendance 3.6 million, average attendance 69,000).
