Snool, the Crown 23 is a Cal deriviative, very much a smaller Cal 25, built here in BC for a while. They also built an 18 (mini Cal 20) a 28, very similar to the Cal 27, and the very popular Crown 34 (which later became the SJ 34) As an aside, the Crown 34 was refined into the Sceptre 36, many of which were built here too. Decent boats for all that.
The SJ will have better headroom that the other two, the Tanzer is a great boat and handles well, the Crown will be pretty decent to sail too.
The SJ is a product of the 1/4 ton IOR rule, and as such is a bit twitchy esp downwind with a spinnaker. The cockpit is pretty tight too compared to the other two. They are a pretty boat, quick (relatively) upwind but not as forgiving as the others... but it doesn't sound like the OP is looking for 'forgiving'
The SJ will have better headroom that the other two, the Tanzer is a great boat and handles well, the Crown will be pretty decent to sail too.
The SJ is a product of the 1/4 ton IOR rule, and as such is a bit twitchy esp downwind with a spinnaker. The cockpit is pretty tight too compared to the other two. They are a pretty boat, quick (relatively) upwind but not as forgiving as the others... but it doesn't sound like the OP is looking for 'forgiving'