Funny that you mention the co-terminal standby issue. I was going on an earlier SEA-SFO flight on Friday and since I mentioned that I was going to dinner with friends in Palo Alto, the agent in the Board Room said "there's a flight into SJC leaving in 15 mins, would like an F seat on that one instead"? Unreal. This type of above and beyond thinking rarely happens when travelling with AC, heck, most agents are unaware that YVR and YXX are considered co-terminals - even the AC website thinks they're one and the same.