Fortune 500: Wal-Mart Stores by Gabrielle Solomon @FortuneMagazine April 13, 2007, 4:36 PM EST E-mail Tweet Facebook Google Plus Linkedin Share icons What do you think of the No. 1 company on the Fortune 500 list this year? Should Wal-Mart be No. 1? Have you worked for the retailer, or shopped there? And does big mean better? Tell us what you think. The best replies will be published here, and possibly in a future story on CNNMoney.com.