I believe enough has been noted by other forum posters already, but while DT yeg isn't perfect by any stretch of the imagination, it is becoming super-good. What was it? The goal to have 20,000 people contributing to the downtown night population by 2020? That might be harder now with the changing economic climate, but who knows?
The City is trying, and has a ridiculously large planning and sustainability department, I feel, considering the city's population.
In terms of moving here, I'd suggest coming in about 2 years time. Wait until all the hassle's of construction are mostly completed and the City has begun to think of itself differently.
Here is a really condescending article from Toronto, telling dudes it is okay to move back to Edmonton again:
http://goo.gl/ZGW6fl