We have a nice trail that circles the city. It has quite a few trail heads as well. No intersections with roads - the path either goes over or under the bridge. On my way into work I usually only see 3-5 people so crowding is not a problem and I can pretty much goes as fast as I want. The path is generally in good shape as well.
We also have bike lanes and getting more of them. What is sweet is that the city sweeps them on a regular basis. The one that I use has been swept 3 times since I started using it a couple of months ago.