Is it better to use synthetic or conventional oil for my Audi A4?

I've heard conflicting opinions about whether synthetic or conventional oil is better for my Audi A4. What are the pros and cons of each option, and which would you recommend for optimal engine performance?

Synthetic oil is generally considered better for high-performance engines like those found in Audi vehicles. It has a higher resistance to breakdown, which can result in longer intervals between oil changes and better overall engine protection.