So I tried www.bing.com/maps. The first thing that surprises me is that it tries to set 5 cookies from google.com and one from www.google.com
What is the reason for Microsoft to allow Google to track everybody who uses their maps?
In the Netherlands the businesses (shops, restaurants, and general businesses) are more complete than OpenStreetMap, but not as complete as Google because everyone sees Google as the de facto standard and they push owners to add their info in the de facto Google search.
Bing Maps is fast and responsive (unlike Google Maps on anything other than their own, proprietary platforms such as Google Chrome, the Google Maps app, or Google Earth), and has aerial imagery and traffic info (unlike OSM).
Bonus game: turn off labels on satellite view, zoom out to world view, and try to find your house or other places. Surprisingly hard!