I believe no antivirus title is good on its own - persons (especially in our industry) should have multiple scanners.

I use Alwil's Avast (the best by far) as my main scanner (I scan every other day), along with Kerio Personal Firewall (ZoneAlarm crashes way too often, does not play nice with other software and is nowhere near as powerful), Lavasoft's AdAware & Safer-Networking's Spybot TeaTimer. I also use Trendmicro's (trendmicro.com or antivirus.com) Housecall for a weekly scan or when I feel I have a problem. Kaspersky is okay, but find the list is nowhere near as extensive as Panda or Raven.

MHO, the worse title I have ever purchased (and stupidly renewed license) is Symantec's/Norton’s AntiVirus --- WOW, what a waste of cash that was.