I'm in Vancouver, BC, Canada. I'd say in the city proper (not including the suburbs of Burnaby, etc) we're about an 8. I mean, here's a map of all the cycling routes in Vancouver. Green is shared with cars (either with a paint stripe or "sharrow") and yellow+green is dedicated bike lanes. While neither of these are perfect (for instance, the dedicated lanes sometimes intersect with cars in dangerous ways, and we all know the dangers of painted bike lanes in the Door Prize Zone), I feel pretty safe riding in the city and find the routes pretty convenient.

Moving out of Vancouver proper I'd say is more like a 6. Some routes like the Central Valley Greenway and BC Parkway go into Burnaby and New Westminster (and beyond I believe), which makes commuting across municipalities more convenient. However, once you go into these suburbs - especially Burnaby, but New Westminster isn't bad - they often become more like glorified sidewalks which means you can't go more than 10km/h because people are walking on the same path.

But even compared to a "big city" like Toronto, Vancouver's decades ahead in terms of cycling infrastructure. It shocked me the last time I was in Toronto and seeing cyclists getting pushed so far to the side of the street by motorists that many had to push the curb with their right leg while balancing on their left pedal - like they were on a scooter. But this seemed commonplace (at least on Bloor St)!!

Interestingly, on Copenhagenize's annual lists of top bike-friendly cities, the only Canadian city that ever appears is Montreal. I've only visited a couple of times (without a bike), so I can't say if it's that much better. I do know they have a bike sharing program though.