A simple list of detection rates, from research by av-comparatives.org February 2009
Out of a total of 1.274.928 viruses, trojans, worms and malware the following list tells us the detection rates of the different AntiVirus programs:
1. G Data 99.8%
2. Avira 99.7%
3. McAfee2 99.1
4. Symantec 98.7%
5. Avast 98.2
6. Bitdefender, eScan 98.0%
7. ESET Nod32 97.6%
8. Kaspersky, TrustPort 97.1%
9. F-Secure 93.4%
10. AVG 93&
11. Sophos 89.6%
12. Command 88.9%
13. Norman 87.8%
14. Microsoft 87.1%
15. Kingsoft 84.9%
I just found this interesting. More on av-comparatives.org