While I agree that BitDefender is a good Antivirus, I am going to give Av-test a big thumbs down.

Their so called testing method is not even close to accurate. Have you guys heard of their report about free Android AVs?

They didn't test Look Out, Dr.Web, Webroot. The top three Android AVs, instead the compared lesser ones to the premium AVs.
Ghacks reported about this and it drew a lot of flak from Android users, including Ashraf from Dottech.

I doubt that their PC security software review is genuine.