If you want to avoid the nasty bugs of the internet a Mac is the best form of Anti-Virus / Anti-Malware that is out there
Now, for those of us that can't get a Mac right now, or refuse to switch, this is what I recommend for all of my customers right now.
I have been an AVG / Malware Bytes / SpyBot guy for a very very long time. I have found that these in combination far out perform Norton, McAfee, and others. Recently though, I started using Microsoft Security Essentials. It is working fantastic on my systems, and on all of my client's computers. It is free and can be downloaded at
http://www.microsoft.com/security_essentials/
It uses very few system resources and that is a major problem with most security suites. That has been my biggest complaint with AVG 9.0 is the amount of resources that it requires.
So try MSE. It is working great for me and all of my clients.