It is a subjective topic. Each service provides different layers of data, with varying amounts of coverage for each layer. People have opinions on how important

It is a subjective topic. Each service provides different layers of data, with varying amounts of coverage for each layer. People have opinions on how important each layer is, and what's acceptable in terms of coverage for those layers. Where I went to college, near Rochester NY, housing data is nearly non-existent in OSM, while Google Maps happily provides it and 3D models of them too. Where I am in Seattle, OSM has parking information while Google Maps does not.