If you'd like lots of porst and fewer crowds, go to southern carib out of San Juan. If you like to get the most sea days, Eastern carib sailings from Florida usually has fewer ports. Somewhere in between is Western. If you've never been to any of these, don't sweat the differences just find a good value and get on a cruise. If you like it as much as most of us here, you'll get to experience all three eventually and decide for yourself which is best for you. Any would be a great first cruise experience.