What are the five most frequently used strategic approaches that sets a firm apart from its rivals? Which one is the most important? Why? My response should be 300 or more words in length.

Research real-world examples to support my position.

• The web is a valid resource for this research.
• Provide all sources used.
• "Please refer to the Publication Manual of the American Psychological Association, 6th ed. (commonly referred to as APA format) when formatting research papers, crediting sources, and creating reference lists".