Hi, yes, I have used AVG in the past (pro version), but switched to AVAST 4.7 home (free) edition a year ago, mainly because AVAST is much simpler to use. As for detection ability, neither of these
applications are found among the top-rated group. I have other software, like SSM and ZoneAlarm
Pro and TrojanHunter that, in my experience, afford much better protection from the nasties than either AVG or AVAST. If you don't already have Spyware Blaster loaded on your system, I would
urge you add it to your stable of security apps. You can add it to your system for a small donation.
All the best