Forgive me for the double post, but a quick point on ranking system:
Ranking systems are terrible. Having partaken of them in numerous other games, the only thing they show are the people with far too much time on their hands. Half the time, the best players don't even break the top ten, because frankly the best players wouldn't be wasting their time on ranked wifi all day. If anything, they'll be using the friend battles to fight with their own crewmates or other smash friends.
At the same time, some middle school kid with a lot of time and no friends can just be sitting online, beating whatever newbies show up and disconnecting when they're about to lose.
So, to reiterate, ranking is a waste of space. I don't doubt that they'll probably put one in anyways, in one form or another, but to think you'll find many people who are actually really good is a bit of a push. The people on the top ten usually aren't BAD, persay, but it's almost certain that they're not close to being the best. They just have the most time to kill.
On an off-topic, finally Bowser will be able to represent on a global scale.