Back to topic of the best 5 players:
Everything else is just bla bla. That's also why I believe it would be a mistake of Fizzer to implement to many ladders and I would even play devil's advocate by arguing that there should only be one single ladder. Pubescent dudes want to see who is the strongest and want to fight for their place in the hierarchy. To many ladders with completely different people at the top is just to confusing.