Chief Vs Autocad

[dshall]

You can model anything with Chief. Sloping walls can be a bit of a challenge, but some users have devised a way to do it. Chief blows Archicad away.

I am assuming The Moakster is fairly well versed in both programs, and he would choose CA for 99% of his projects.

Now Mr. Curbudgeon says this,

Hmm, I've been using both programs for roughly 15 years, and I would strongly disagree with that statement.

So the questions to Richard are:
-when would he choose to use Archicad over CA?
-Does he use both to complete a project and if so, why?
-Would he use CA for a particular 3000 sf home and would he choose Archicad for different 3000 sf home?
-What governs his decision to use a particular program over the other?