Well it is really a matter of what you consider to be valuable now, isn't it?
For me, it is a matter of avoiding my "Pet peeves:"
(1) Poor choice of performers - if the people turn to stone when the camera is rolling, the scene is as dead as Julius Caesar! So many cuties turn in "dead fuck" performances!
(2) Poor lighting, sound - if we can't see it, not how fucking erotic can that be? We need to hear them screwing, turn the motherfucking music down!
(3) Looping - the same shit is hot maybe once, but not 45 times - Vivid!
(4) Poor timing - miss the key moments and you are an average porn maker.
Jaydee