I was working on a mapping solution for WP7 and so wanted to use Bing maps as part of the solution. I learnt that Bing maps doesn't quite get the locations "right", where Google maps seems more accurate. Are there some properties I can set on my calls to the API to change the results, or should I just switch?
no you cant get them to match. Bing maps are modelled by NAVTECH, google maps by TomTom (Teleatlas). Complex road crossings can be modelled in various ways.