What do you think of the corporations on Fortune’s top 20 Most Admired Companies list? Should they be in the top 20? Have you worked for any of the companies, or bought their products or services? What makes a company admirable – social responsibility, excellent talent, sharp marketing, smart managers, or just plain profits? What companies do you admire most? Tell us what you think. The best replies will be published here, and possibly in a future story on CNNMoney.com.