I would recommend against antivirus. If you force developers to use an annoying configuration of a specific OS, you make it much harder to hire top talent. Why would someone work at your company when they could go to Google and use their favorite Linux tools running on their favorite model ThinkPad?
It totally makes sense to lock down machines that can access production, but for development? Just let people use what they like. You'll have less work for IT, happier developers, and an easier time recruiting talent.