What factors influence video results in Universal Search?

No Pork Pies from Brighton asks: “What factors influence a video universal result in Google? – I have the same video, one on YouTube with high views, comments and ratings yet the other one with low views and no comments is the one that ranks – why is this?” Thisvideo is part of a “Grab Bag” series in which Matt Cutts, head of Google’s webspam team, answers questions from users. We’re not currently taking new video questions, so your best bet for getting an answer about webmaster-related search issues is to head to our help forum: www.google.com