Hi, Some folks prefer the Mariner and others prefer the Voyager. Personally, I like the Voyager because I like the bathrooms better. I also like the location of the little dressing table. The room configuration is just better. I don't take showers and Doug doesn't take baths, so we like to have both options and Doug doesn't like cracking his head in the shower / tub combo on the Mariner. Others like the layout of the Mariner ship a bit better. It is personal preference. Also, in the past, the Mariner was smoother sailing than the Voyager, which had some rear end vibrations. Both are great ships, IMHO.The Penthouse suites on the Mariner are absolutely lovely and we really like those when we upgrade.