Probably my worse is shockingly ESET. It was a giant resource hog, ever since the incident been sticking with Avast. Iobit and Mcaffe are pretty up their though...
I disagree. ESET was the best during 2009-2012. Smooth and great protection. Only signatures are not that strong these days.Still not a resource hog compared to AVG/Avira.
Well, I haven't had experience with any really bad AV's like some of you. Knowing what av's to avoid, I've never tried stuff like Iobit and ClamAV.Strange, Eset products are assembly code based and for this, quite light on resources and I can confirm that due to my (limited) experience with Eset.
However, I had a pretty rough experience with ESET. I had it installed in my old mid-tier W7 laptop and the interface simply wouldn't work properly, it would block and take minutes to open some menus which was extremely frustrating. And that was in a laptop with a fresh W7 install.
Then, when I updated to Windows 10 (it was right after W10 got lauched), I lost my ESET license randomly. Since I had no proof of purchase or key to get it back, I uninstalled it and installed avira free. I still tried to contact ESET but if I remember correctly, many people had the same issue of lost key and my attempt to reach to them was ignored :/