If you're going to catch a cruise with Royal Caribbean, you will find that there are many new ships with 4-star customer ratings on CruiseCritic.

The best of the best? CruiseCritic editors give a coveted 5-star rating to Allure of the Seas. This mega-ship, built in 2009, can hold 6,400 passengers and offers a Central Park in the middle of the ship, outstanding restaurants and entertainment, and so much to do you won't get bored during a day at sea.

Customers give it high marks, too: More than 1,500 of the roughly 2,800 reviews are excellent 5-star ratings.

CruiseCritic's Managing Editor Adam Coulter describes the ship as "breathtaking, both in scale and ambition."