After viewing the AV-Test Institute (AVTI) results
, I might consider changing my AV software once again. I've used almost every verndor's solution at one point or another.
Note that their testing methodology is based on XP systems. edit: Thanks Hopalong for pointing out other testing
Over the past 3 or 4 years, I've been using the FREE solutions from AVG or Avast (current protection). Both provide excellent protection and are well regarded in reviews. But according to this report - both are middle of the road. I guess that's a fair price to pay for free.
Is AV-Test Institute a reliable resource? The security vendors think so - they post the awards from AVTI on their pages.