Zone Alarm version 2 (circa 1999) does what I expect a firewall to do and nothing more, plus AVG. I used to use Sygate firewall until it reached version 5.5, or something like that, and started to be problematic so I dumped it.
I avoid all-in-ones. To me they are the washer/dryer of security software. One part goes wrong and the whole thing breaks down leaving us unprotected on two fronts.