I would go with the CPT any day myself, but there are a few caveats. The
raymarine pilot has the ability to interface with a
wind instrument or a
gps, the CPT does not. Both will steer a
compass course. To disengage the CPT is a little more trouble than the
raymarine, but not a big deal once you're used to it.
I have sailed with the CPT before, and as far as I'm concerned one of the best "simple" autopilots out there.