In the SF Bay area, they are generally on par depending on what features or points of interest you want to find. Some locales are shockingly different. Shenzhen

In the SF Bay area, they are generally on par depending on what features or points of interest you want to find. Some locales are shockingly different. Shenzhen China is much much better on Apple (Google and Bing show roads in the river - completely misaligned) but Shanghai is almost useless on Apple, but very detailed on Google (assuming you can even get to Google in China).