I don't live in either market, but I recall when CBC used to carry the Olympics and I lived in an area where CKWS was carried on cable, the Canadians usually did a better job with the coverage. They show everything live, no matter what time it's happening... whereas NBC often tape-delays things so they can show what they think is most-deserving of prime-time coverage.
On the other hand, in recent years, it's been nice to see NBC using many of their cable channels to provide supplemental coverage, allowing you to see more events than NBC could ever carry on its own. For the 2008 Olympics, Time Warner in CNY even added some temporary extra HD channels offered by NBC.
But another question: is it just me, or does it seem like the 2010 Olympics aren't getting that much hype? I've barely heard anything about who's "hot" this year, which sports we're most likely to be winning, and so forth. Seems like there hasn't been as much "water cooler chatter" about these games, as compared to previous Olympics.