I was reading GGJstudios, excellent coverage on antivirus apps for mac and have a aquestion. My concern with viruses is mainly to have an on demand app to scan files sent to Widnows users. I share a lot of files with Windows and some of them have poor security practices. The information I have already is that ClamX is excellent while iAntivirus and Sophos should be avoided. What is the consensus on the other AV apps: Avast and Avira?