I am looking for free antivirus software and these are the three(Antivir and AVG and Avast!4, all the free versions) I have found to be the most trusted on the internet, but I am unsure about chosing between them. I have heard that Avast!4 is alittle bloated compaired to the two others and that Antivir has the best detection rates, but I haven't been able to verify that. Thanks in advance.