How do you judge a director?

[Sussudio]

I've had to watch a few films for the production office I work at and evaluate each director for consideration on being hired for a script in pre-production. This got me thinking about how the directors are judged in, for instance, the oscars. What do you guys look for in a good director? What camera angles he/she chooses, the actor's/actresses' performances (one of my top things), everything as a whole? Just interested in hearing people's thoughts.