One will need to lay out what his/her most valuable contributions could be and how these can apply to the position. When hiring employees, the company is making an investment – they must be convinced that the new hired employee is a good asset.
Therefore, it is important to keep your answer on target. You will want to be specific to the job for which you are applying.
Here is an example of a way to answer the question.
Divide your answer into two categories: skills and relevant past achievements/experience.