A man rides a zip-line on Royal Caribbean's Oasis of the Seas at Port Everglades in Ft. Lauderdale, Fla.
Sure, it's bigger: Nearly four football fields long, with space for 6,300 passengers and volume that's 40 percent larger than any other cruise ship at sea. But is Royal Caribbean's new $1.4 billion Oasis of the Seas actually better than other large cruise liners? More cruise news More travel news