As a non-techie
It's easier for me to just use McAfee which has my firewall, anitvirus and other features all in one package. And it's user friendly. I used to get so confused over all the stuff that one of the freebies threw at me, I didn't know which way to go. I just want to install, have it do its job and leave me free to do my thing on the web. McAfee does that (well, except for one system glitch for a bit but that got corrected).