I use Avast , http://avast.com . Personally it's the best for me. Using it for more then 2 Years or longer forgott : /.
Personally, I use none and stick with www.virustotal.com.
If I had to choose, I'd pick AVG. That might just be because it's the only one I have installed, but never use it.
Precisely, which is why client-side anti-viruses and firewalls are of paramount need when it comes to security.You do realize you can get viruses just by visiting sites, you don't have to download anything.

