Why would I believe in some research that can be very subjective and paid for by the same company that turns out to be the "best choice" in the end? My approach is to personally test what I want to use, and considering that most such software provides a free period, then I decide what is best for me.
You can not personally test the antivirus software, because you do not have let's say 100 various malware/virus samples for testing. There are around 3 major testing companies, which test all most popular antivirus software, and results are similar - so more or less tests are objective. The main problem, why antivirus defence is so important you can find in this forum post - My wallet has been hacked. What to do?