makes me suspicious when Norton ranks so high. We've been close to taking it off our approved antivirus list (for campus resident students) for quite some time due to it being so problematic. And then seeing ESET so low. . . smells fishy. Never been a fan of av-test. My own testing has never lined up even close to their results. . .
I would assume that they do not include issues in their testing but just controlled environment scanning, which in my experience is never indicative of the real world.
I have been using MSE as my primary AV since the first version on XP and have never gotten a virus, nor has my wifes machine and she is not nearly as tech savvy as I am.
Either way the best AV is the brains to not click on a shady link or go to shady sites.