But I have seen Avast failing quite a few times, but never in case of ESET.
Agree with this...
For me, Kaspersky has always worked best since 2007, Avast AVG are good for free, but i still don't know how they score so high..
My college have both AVG and avast installed on systems, updated, and all those systems are full of viruses, delete them and they again creep into the system through network, avast internet security does'nt even detect it until it's already into the system..
I had installed kaspersky on my pc there, and no virus had ever penetrated my college system in 3 years, so always safe..
ESET has good detection rate and main advantage is that it's light on resources, so it's a good alternative too..
Also i have personally tested all the big brands in antiviruses in a fully infected VM running winXP SP3, and have found that bitdefender, kaspersky have the best repairability rates, no file has gone corrupted while repairing and above 95% of files were repaired in the first scan itself ..
AVG deleted (quarantined) the system files itself instead of repairing it (notepad, defrag, wordpad and others were gone), same was with avast, avira too much false positives, eset was able to detect but able to repair just about 70% of them..
Norton was too heavy while repairing, and false positives were high compared to kaspersky..
In the end, bitdefender was a little buggy with the system, so kaspersky was the winner in my small test, though it took a very long time in scanning..