Best for: Mature cruisers
Why: Upscale Silversea attracts a dedicated following of mature travelers (in fact, it's a rarity to find a child onboard). Its all-inclusive pricing model allows for a luxury experience without lots of unexpected expense, with Silversea inclusions like room service, wine and spirits, gratuities and transportation into town from port all bundled into the upfront fares. The line's nine small ships -- accommodating just 100 to 596 guests -- are well-suited to guests seeking easy camaraderie, as well as for those with limited mobility. Plus, Silversea's itineraries propose access to more off-the-beaten-track worldwide ports (they sail to 800-plus locales across all seven continents) that hold special appeal for seasoned travelers looking for new horizons to explore.
Runner-up: Holland America, an elegant midsize line, has traditionally drawn a more mature crowd by emphasizing the classic cruising experience over partying and pushing the adrenaline limits. It offers quieter pleasures, such as the Culinary Arts Center and a partnership with America's Test Kitchen that focuses on cooking demos and hands-on workshops; self-guided art tours of the onboard art collections; and Explorations Central, which aims to highlight local culture and history onboard via special talks, port guides and cultural demonstrations. The athletic pursuits, such as a tai chi, yoga and tennis, don't require a 21-year-old's physique. Even innovative additions to the entertainment lineup keep the company's loyal cruisers in mind. HAL has a fabulous B. B. King's Blues Club and dinner events featuring menus by epicurean stars like noted chef Elizabeth Falkner and Michelin three-star chef Jonnie Boer.