CTI & CSS are on the same side of the island. CSA & CN are on the other side of the island. If you are a true beach person, then I suggest the Negril side. The beaches there can not be beat.
The reason CN is described as being centered around the pool is because of the way the buildings are. The pool is the main centerpiece to the building area. (If that makes since.) But I wouldn't say that it is a pool party scene. Plus if you are on the beach you can't even see the pool let alone hear anything that is going on.
If CN is tugging at your heart then go. We have been 3 times and love the place.
Be prepared for a small beach at CSS. There isn't any walking area to roam the beach like there is at CN.
Juliann & Jeff
Jamaica Soon Come