However, current AV products on Windows are just not that great to use. They are a hassle through and thru. Major players like Symantec AV and McAfee are fat slob pigs. Do you really want to put your users through such a user experience?
I tell Windows users to run as far away from Symantec and McAfee as possible, and to use AVG instead. We have McAfee here at work, and it is the suck.