To surf Internet I use an Alienware Area 51 w 6-core I7 with 32GB of RAM...no such thing as slowing this system down. My toy server development system has 10 cores and 64GB RAM.
Norton not looking bad here,
PcMag.
I like Kaspersky but would only use it as an AV in VMware hosted client, not my main system. Never trust the Russians for anything, and I mean anything.
How is PC Mag going to test viruses when they don't have a decent virus colection.
Any body and their dog can but the virus colection from Hacker called Aristotle sent me his so called virus colection and I found multiple copies of the same virus on the same bait file. The worst offender was the same virus in the colection 14 (yes fourteen times).
In 1996 when Richard Ford was trying go develop the AV testing protocol for the National Computer Security Association (NCSA) Wolfgang Stiller made the introduction, and Mr. Ford and I hammered out the testing methodology used by the NCSA.
One of the first things we did was delete duplicates, the next thing we did was kill the false positives that were not viruses at all.
Then we replicated all of tge virusesy in the colection we could.
Having 26,000 viruses is not enough.
You have to get rid of the duplicates, false alarms. Replicate all the viruses you can and the ones you can't replicate because wrong file size. Wrong hard Drive format, wrong operating system or processor send the suspect file to one of THR experts in CARO.
LOL
Run Rose Run! 
Quick, who's got Pinocchio handy?? 
