We used JPlayer at the Facebook University Hackathon series this year, and while it wasn't always a joy to work with it was far faster than rolling our own. As

We used JPlayer at the Facebook University Hackathon series this year, and while it wasn't always a joy to work with it was far faster than rolling our own. As others have said, super easy to reskin, handles cross-browser compatibility fairly well; overall a great boon to anyone looking to quickly get up and running with HTML5 a/v