24Oct/090
MS Security Essentials vs AVG vs Avast
Is it time to begin recommending Microsoft Security Essentials over AVG and Avast? AVG is easy to use, but the free version is somewhat crippled (no rootkit detection). Avast includes rootkit detection, but does not seem to scan the registry and has a user-unfriendly UI.

Microsoft Security Essentials screenshot
MS Security Essentials won't nag users to upgrade, has minimal required user interaction, and includes rootkit protection.