How are awards are given in the editing category?
In 2013, Argo (2012) won an Oscar for editing. I saw the movie, but I didn't notice any noticeable editing effects like rapid cut sticking out, like I experienced in Requiem for a Dream (2000) (these did not compete against each other, though).
Then how are awards given in the editing category? What are the objective criteria or process for choosing nominees and winners in this category for the Academy Awards? Are there any general criteria that define "good" editing?