Having just praised #10 at CPC, I'll now have to say I prefer #18. It might not be to everyone's taste, but it is undeniably dramatic, both as a round closer and an exacting test. Not only do you have to pick a spot over a cypress tree off the tee and trust your swing and your club choice, but then you're looking at a steep uphill second that demands absolute precision. Too short, and you're rolling back down the hill; too long -- God help you.
(I'll insert again that I think it would be just as a good, if not better, if the tree guarding -- not to say blocking -- the left side of the green were removed. But that's for the members to decide, and they've obviously decided.)
The bonus is seeing the clubhouse on the hill beyond the green, and turning around to see the ocean below you as you hit your final putt. Not bad for a lousy finishing hole.