No.3 Feedback I think is the best because it is both positive feedback so that they know what a good point of what is written in order to retain and provide negative feedback to correct flaws.
Feedback No.3 I think is best. Due to the positive feedback as to know the fine points of what is written. To maintain and provide negative feedback to correct the defects.
I think the best Feedback No.3 due to provide both positive feedback to know what work write what is to survive. And negative feedback defects to be solved