That actually sums things up; there are far more relevant and interesting questions concerning the two companies before you get to respective traffic levels. Google is making a lot of money, Facebook isn't - there is no point Facebook having more traffic if they can't monetize it over the long term.
Facebook cannot beat Google...Facebook and Google both are different in function. Facebook is a Social Networking website and Google is a search engine...
I think they will beat Google. Right now Google thinks they're unbeatable, but I've been having so many issues using them that I've started using Yahoo again, and I know of other people who are doing the same. So I think Google is on a downward spiral, and FB is making the necessary adjustments to take the lead in the coming months.