I am still (proudly) using the McAfee Antivirus Enterprise edition on my Win Pro machine. It has (imho) the best options/flexibility. I also remember that the respective firewall was also super strong and very versatile but I can't get my hands on any latest version of it (I have the AV legally).
My understanding is that Windows Defender is the only decent engine nowadays, but that's second-hand anecdata I can't measure the bias of (I don't currently use Windows).
