Quality and Interest

Top of list matters least (but does matter) and bottom matters most.

Video Quality Technical: Color fidelity, resolution, compression artifacting, stability of focus.

Audio Quality Technical: Sample rate, clarity of highs, preservation of the lows, definition of mid tones, etc.

Video Quality Content: Is the background distracting, is the action compelling, are the most important parts of the shot lit well.

Audio Quality Content: Can I hear what is being said? Do the sounds match the pictures?

Audience Interest: Will the intended audience care? How much? Think Microsoft Certification.

Human Capacity Interest: Amazing feats. Athletes doing spontaneous back flips to celebrate. A guy juggling while riding a unicycle.

Human Frailty Interest: Little kid whacks his uncle in the groin with a baseball bat by accident. On the more serious, gruesome end, Joe Theisman gets his leg snapped by Lawrence Taylor.

News Interest: Content that EVERYONE will finds compelling for it's political or social importance. Haiti earthquake. Protests in Iran.

Then there are videos that turn it upside down, using home video quality to mask CGI.