Guys as it has been already mentioned before, the malware samples that they select and ones that others select may not be the same. The results will vary depending on the test configuration, eg: the Operating System used (AV-Test publishes results separately for Win7, 8 and 10), the Malware samples used etc. Hence the results may vary between AV-Test, AV-Comparatives, Dennis Labs, PC World and so on.
Even tests conducted at MalwareTips has the disclaimer below
Rather than judging the results of these independent labs and wondering why your favorite product scored a few points below than the competitors and saying that there's foul-play, it's better to take the wise route and sticking onto your current antivirus, because at the end of the day any antivirus can protect you fairly and none is fool-proof.