Launched in 2010, Epic broke the mold in many ways, most notably with its game-changing Studio cabin

Everyone has a favorite. Our goal with this chart is to outline the key distinctions among the 10 most popular ships in the industry -- accounting for more than 45,000 berths -- in an easily digestible way. "Popular" is determined by pageviews, Facebook likes and associated Cruise Critic member reviews. Want more info about Oasis of the Seas or Carnival Magic? Click on the vessel name for a comprehensive expert review and hundreds of reader-submitted critiques.
The 5,400-passenger Oasis launched in 2009 as the largest cruise ship ever built. In addition to debuting many at-sea firsts, including an outdoor AquaTheater, Oasis represents a revolution in design. An open-air corridor carved out along the length of the ship creates space for a tropical foliage- and eatery-filled Central Park and a Coney Island-style Boardwalk.
The 5,400-passenger Allure builds on the blueprint introduced by its sister, Oasis. Both ships feature unique-to-cruise offerings like zip-lining and a handmade wooden carousel, but Allure has its own twists, including cruising's first Starbucks, a hot dog venue and the Broadway show "Chicago."
The 3,646-passenger Carnival Dream, born in 2009, is the glitziest of Carnival's Dream-class trio. Dream represents a blend of intriguing innovations and inventive twists on old "Fun Ship" themes, like Cove Balconies and the Ocean Plaza, an outdoor meet-and-greet venue with whirpools and comfy seating.
The 3,690-passenger Carnival Magic debuted in 2011 and immediately generated buzz for its exclusive Thirsty Frog Red Ale and cruising's first ropes course. Some of its offerings, including a new Italian restaurant and its now-signature suds, proved so popular that they're spreading to older Carnival ships.
Launched in 2010, Epic broke the mold in many ways, most notably with its game-changing Studio cabins (geared toward solos), its unique shows (including Blue Man Group) and controversial translucent bathrooms (alas, you can see right through the smoked glass). Add in more than 20 restaurants, a giant water park and one of cruising's largest spas, and the ship lives up to its name.
The 2,886-passenger Silhouette debuted in 2011 as the fourth of five Solstice-class ships -- arguably the most beautiful mega-ships at sea. The ship earns high marks for its whimsical restaurants, glass-and-light-filled spaces and Lawn Club, a top-ship green space where passengers can eat, play bocce and feel grass between their toes.
The 2,850-passenger Celebrity Eclipse is the third in the vaunted Solstice-class series. Highlights include varied dining options from French to Italian, a top-deck section featuring a real grass lawn and one of cruising's highest proportions of balcony cabins.
The 3,634-passenger Liberty of the Seas debuted in 2007 as the second of three innovative Freedom-class vessels, ships that cater to families, couples and groups. A dry-dock in early 2011 added a number of touches from the younger 5,400-passenger Oasis-class pair, including a cupcake venue and new Broadway show.
The 3,080-passenger Ruby Princess showcases all of Princess' marquee features, including a poolside big-screen theater; the Piazza, a combo bakery, Internet cafe, and wine and tapas bar; and the kid-free Sanctuary, a shady top-ship retreat with plush loungers, massage cabanas and a spa menu.
The 2,500-passenger Disney Dream debuted in 2011 as the Mouse's first new-build in more than a decade. The ship continues Disney's signature "ocean liner" look, and it's packed with cruising's first watercoaster (the AquaDuck), an entire deck devoted to kids and the French eatery Remy -- at $75 a head, the most expensive alternative restaurant at sea.