Also yes I don't actually rate the World Cup. I always say watch Champions league to new footy fans.
I agree that the NFL does have great athletes in a team, but also the NFL is equiavalent of the best of the best in that sport. In Rugby it is far more spread, two type, league which is more skillful, and union which is probably more in size and strength. Then you have so many countries from England, France, Australia, New Zealand to the Islanders like Tonga, Somoa etc..
If you put the best of every nation in a super league, of one sport, then it would be like the Champions league.