I have never biked in Paris, however, I'm pretty happy with the commuting situation in my little part of the USA.

Online Maps | Thurston Regional Planning Council, WA

I've seen continuous improvement in the cycling infrastructure over the last 8 years. Some really amazing projects that have included new paved trails, bridges over busy roads (including the freeway), lots of new bike lanes, and better demarcation of bike lanes at intersections. The planning and funding continues on into the future.