Most walkable city in the world? Do you have sources to back this?
SkyTrain is the most beautiful rapid transit line I've ever been on.
Best in the world though? Not sure - I'd like to see it compared to Zurich or Hong Kong or Amsterdam in that regard.
If you live out in the burbs, transit is okay, but not better than most European cities.
Downtown Vancouver and false creek were designed with density and walking in mind. Every condo tower must have street level retail, and they make sure to have essential things like good grocery stores every few blocks. Check out the walk score for Yaletown: http://www.walkscore.com/score/davie-st-and-pacific-boulevar...