What does antivirus software have to do with firewall functionality?
Is that question supposed to be for me? I'll answer it anyway, or at least answer a related question:
Firewalls that are part of an AV package are add-ons, afterthoughts, products introduced primarily for one-more-tick-on-the-box-in-the-supermarket reasons, not as an actual security product
per se. They tend to be pretty horrible.
Firewalls that are sold stand-alone tend to be products specifically designed to do what they do. That's a big difference.
Unfortunately (unfortunately in a way), the Windows Firewall does pretty much everything that any rational person could want a firewall to do, and that means that the third-party firewalls have to offer all sorts of crap functions that Microsoft very sensibly left out of their product, otherwise no-one would buy them, so they wind up as disgusting bloatware just like Mcafee and Norton. Hell, have you looked at Zone Alarm, lately?
Last time I looked at it Comodo seemed sort of OK. But it's probably horrible by now too.