Provide the reasons why you think this position is better defended by reason and evidence than are the alternative positions
State the reasons why the position you take makes sense and has evidence and reasons to support it other than your feelings or personal preference or your opinion.
What you were brought up to believe or what just about everyone you know thinks or believes.
State the reasons why you found the other positions flawed or less defensible than the one you are defending.
State the criticisms of your position.