Two different cruise lines, two different experiences, two different passenger makeups. One is more energetic but then prone to more drinking, arguments and basically rudeness. The other is more laid back. Not to say there are no bozos on Princess. It is a matter of personal choice. As for me I believe my Carnival days are over as are my days on large mainstream cruiselines. I am starting to migrate towards smaller ships as I get older lol. Whatever choice you make, please keep us posted and smooth sailing!