According to me, AVG Antivirus is the best because it detects mostly all the Virus and delete that virus. AVG AntiVirus is really a nice antivirus i using it from last 2 years and because of that my PC run speedily....
I quit using the free AVG version 2 years ago. When they started promoting the paid version. Switched over to VIPRE Antivirus + Antispyware http://www.sunbeltsoftware.com/home-home-office/vipre/ It's faster, less bloat, smaller foot print and does a better job all around. The price is right $29.95, not free but almost. Well worth the price when you compare it to all the others.
I was with avg also until it had a serious problem with online updating, that if your computer stayed disconnected on internet for long time it fails the update. AVAST is my trusted antivirus.
AVG provides a great service for having no cost, I used to use it for quite a while and it kept me pretty well protected
I have 2 PC: one have installed AVG and the other one AVAST. I want to see what is the best - until now I can't say.
i like avg but currently i dont have it i was using it earlier. i got a free subscription of norton internet security but i am not fully satisfies with its performance.
i didn't use it yet. because i am using avast for last one year. and feel that its good for my PC. but i will try avg also when my PC need window installation.
I am using AVG anti virus from last 1 year. but i am not satisfied with this anti virus.now i am using McAfee anti virus.