The "best" antivirus would be a little hard to identify. I am currently evaluating some software that appears to be the "worst". It is running on a system with files infected by hundreds of viruses (both ancient and modern) and it refuses to correctly identify any of them.
Actually, the "best" antivirus is "no" antivirus. Take a proactive stance: isolate your computers from the world. Physically remove the floppy drives and CD-ROMS from the cases. Set up harsh system policies and deny Internet access.
I hope you understand my point. Not long ago I was assigned the task of evaluating the state of a company's Y2k readiness (don't laugh). I was somewhat surprized when I discovered that only 2% of the computer users actually needed computers to do their jobs. The remainder could have performed their duties more efficiently, at a reduced cost, had they been equipped with manual typewriters and battery powered calculators.
Be ruthless, establish priorities, find the weak links and eliminate them.
If you insist on spending a little money so you can sleep at night, try Norton Antivirus. It's relatively inexpensive and it correctly identified 85% of the virii that *the other* package chose to ignore.
Alt255@Vorpalcom.Intranets.com
Don't sit down, it's time to dig another one.