I found this video to be very interesting, hopefully you will too! @ 13min they start talking about different av's, which was my fav part https://www.youtube.com/watch?v=b_wXy9CJP8Q
Vipre just inched past MSE as worst AV in latest AV-Comparatives Real-World protection test: http://www.av-comparatives.org/wp-content/uploads/2015/07/avc_prot_2015a_en.pdf . Basically, its 0-day protection sucks; its performance impact sucks, and its false positives suck. AV-Test certified it but it had the worst scores of all products in the certified category. Virus Doc not ready for prime time viewing