What is your favourite/best firewall on FreeBSD and why?

[Warren Block]

On Tue, 20 May 2014, Lucius Rizzo wrote:

> Ultimately, outside configuration differences all firewalls are essentially
> serve the same purpose but I wonder what is your favorite and why? If
> you were to run FreeBSD in production, which of the three would you
> choose? IPFilter, PF or IPFW?

I started with IPFW and used it a long time.  Then I switched to PF, 
which has been easier to configure.  Certainly PF is what I would use 
for any new projects.