VANCOUVER?In every city it?s the same hymnbooks, as it?s always been: a single anthem, then the sound of clashing loyalties. The arenas were half-filled with blue and white in Calgary, in Edmonton, in Vancouver. It?s been this way forever, here and in Ottawa, too. It?s both religion ? Canadian religion, mind ? and math. And so, every Leafs game out here is full of atmosphere, and is a joyous clash. In Edmonton, the duelling chants of ?Let?s Go Oilers? and ?Go Leafs Go? reached a pas-a-deux crescendo; in Calgary, the fight was simultaneous, with ?Go Flames Go? and ?Go Leafs Go? overlaid...