I don't like to use a hood on my subs. I prefer to see their face. I will sometimes use blindfolds so that they cannot see what is coming at them, but I can still see the play of emotions across their face.

A number of responses here mention the dehumanizing aspect of hoods (and I'm aware that dehumanizing is used here only in a transitory way). I don't like to dehumanize my subs. Even during a scene, I get more pleasure knowing that they are sentient and aware of what is transpiring.