After doing some brief research on Joe the only thing I can come up with is a bit of plagerism in one speech he gave 20 years ago. If that is a disqualification for the VP spot then I'd say he looks like a saint compared to Cheney or Romney. Oh and looking into the background of Romney we find that he did what most democrats would do to solve the budget crisis in Massachusetts he raised taxes and cut spending. Ah oh better not let the republicans hear this. The republicans have taken a position of lowering taxes while spending more than any admin in U.S. history. And to all the corporations out there Romney raised the corporate taxes to do it.
So what does Joe Biden bring to the formula? He brings years of experience in foreign affairs having served on committees under both the republican and democratic administrations going as fas back as the 1970s. Not to mention the following judiciary sub committees:
Subcommittee on Antitrust Competition Policy and Consumer Rights
Subcommittee on Crime and Drugs (chairman)
Subcommittee on Human Rights and the Law
Subcommittee on Immigration, Border Security, and Refugees
Subcommittee on Technology Terrorism and Homeland Security
Although Joe is no superstar of a politician I'd say he hasn't done too badly over the course of his career