I have to be honest, I think Norton is very close to Emsisoft. SONAR has made large strides, just take a look at the hub and Modal Soul's recent product reviews. Emsisoft has always remained pretty consistent, with its behavior blocker taking out anything that isn't picked up with a scanner. Performance wise, Norton is moderate, but considering how many features Norton has, this isn't a con. Emsisoft is on the lower end of moderate. UI wise I still don't like Norton, it just feels clunky. Feature wise, Norton has more features whether it be a strong identity protection, mobile security, data storage, a virus-free guarantee, and others which I won't go into here. In the end, however, I think Emsisoft provides a great amount of protection, the UI is better, it's faster, it has reliable customer support, and overall I think it's more user friendly. If it helps give a better perspective, I think Norton is a better corporate product, whereas Emsisoft is better for home users. For the sake of voting, I picked Emsisoft, but give both an honest chance.