Exhibit A: 5v5 Shot % = SF/(SF+SA) for the last three seasons (the NHL started offering us this data just three years ago...hard to believe...)
Precisely three teams have been 2+ standard deviations above the mean in this category: 2007-08 Detroit, 2008-09 Detroit and this year's Hawks. Last year's Pens team - once they installed Dan Bylsma behind the bench - was also right up there.
Teams that can achieve this level of performance quite literally will make it to the Stanley Cup finals. Philadelphia, while not a bad team, simply isn't in this realm. Nothing's guaranteed in sports, but Chicago is one of the safest bets you can make.