Err that was yahoo's model
send a human to rate the site.
Problem is it can be gamed a bit, and algorithms work better for the pros, that's why Google is number one really.
See, someone has to come in and install the browser, they set the homepage to google and google wins. But, the reason that homepage is set to Google, is Google makes more sense for those producing commercial websites. We can sell our skills again to SEO the site. A rating system is too subjective.
So, if you want to beat Google, just make sure your search engine is website developer friendly and we will sort out the home page.