Show me a Anti Virus program that has never failed and I'll show you someone who's bankrolling people to write viruses.
Seriously. They've all failed at one point or another. The real issue is, how qiuckly do they figure it out and bounce back? How well do they update you on the viruses that defeat their products?
Macafee and Norton fail alot of tests. Because they are the most popular A/V programs out there, and more viruses are written to specifically attack them. That doesnt necessarily turn me off of either product.
What I dont like about Norton is the way it insinuates itself into your OS and sticks its fingers in places they dont belong. Also, it doesnt work well with Thunderbird.
What I dont like about Macafee is they refuse to tell you about viruses that manage to defeat their software and they leave you swinging in the wind.
So does CA.
PC-Cillin was ok, but SLOW to update; still may be one of the best out there.
Panda does alright, misses more than I like though, and also doesnt work well with Thunderbird.
I currently have Avast installed, and its already missed one test I sent its way. It wont be on much longer.
Bottom line is, I really dont much like ANY of the current offerings, but PC-Cillin may be the best bet. I have a few others to try.