Product ascending order descending order Score: 0.0 (worst) to 6.0 (best)
Protection Repair Usability
Avast: Free AntiVirus 5.0 and 6.0 3.5 2.5 5.5
AVG: Internet Security 10.0 5.0 4.0 4.5
Avira: Premium Security Suite 10.0 4.0 3.5 4.0
BitDefender: Internet Security Suite 2011 6.0 4.0 5.5
BullGuard: Internet Security 10.0 5.5 2.0 3.5
CA: Internet Security Suite 2011 2.0 3.5 4.0
Comodo: Internet Security Premium 5.0 and 5.3 4.0 3.0 3.5
Eset: Smart Security 4.2 3.0 4.0 5.5
F-Secure: Internet Security 2011 5.5 4.5 5.5
G Data: Internet Security 2011 5.0 4.0 5.0
Kaspersky: Internet Security 2011 5.5 4.5 4.0
McAfee: Total Protection 2011 3.0 2.0 3.5
Microsoft: Security Essentials 2.0 2.5 3.5 5.5
MicroWorld: eScan Internet Security Suite 11.0 3.5 3.0 5.0
Norman: Security Suite Pro 8.0 3.0 3.0 2.5
Panda: Internet Security 2011 5.0 4.5 4.5
PC Tools: Internet Security 2011 4.0 3.5 3.0
Sophos: Endpoint Security and Control 9.5 4.0 4.0 5.0
Sunbelt: Vipre Antivirus Premium 4.0 3.0 5.0 4.0
Symantec: Norton Internet Security 2011 5.5 5.0 4.5
Trend Micro: Titanium Internet Security 2011 3.5 3.5 5.5
Webroot: Internet Security Complete 7.0 4.5 5.0 3.0

Fuente: AV-Test.org