How rare is this season in terms of balance? Is it primarily due to QB injuries? I have only been watching since last year when Calgary was clear cut top team and this year seems that any of the top 7 can make the Grey Cup? How often do years like this happen in CFL? It is much more exciting than the NFL where one conference (AFC) has been dominated by three quarterbacks (Manning, Brady, Roethlisberger). NFC has been a bit better