Before some times i was using the MCAfee and now i am using avast anti virus.. it's really Impressive. I mean easy to operate.. In fact i would like to prefer both of them.
My top 3 AV are: Bit Defender, Kaspersky and Nod32. I recommend Nod32 for gaming PC, easy to setup and can scan in the background without hogging your pc.
I dont know about the best but i use NOD32, used to use norton but it seemed useless at cleaning what it found, i tried AVG but seemed to slow things down for me. NOD32 seems light but strong.
I use AVG and I'm quite pleased, either freeware or full packages are working properly, but AVG full package is the best protection for Your PC.It makes a little bit slower the PC work, but You can be sure that the PC is protected properly
votes for kaspersky internet security 2009. i'm using the original one. so far it is the best and suite in my pc