The value of PR is about the same for both Baidu and Google. PR reflects the value of a website's internal and external links in terms of quantity. Of course, search engines do not just determine whether a website has high enough authority based on the number of links. That was something that worked a few years ago when mass distribution was still effective. Nowadays, search engines focus more on the value of the links. Naturally, the more valuable links a site has, the better.