I've always been an advocate that Bigger is Better. I've wanted to sail on an Oasis Class ship since they were introduced to the cruise industry. After my cruise on Allure I am less to embrace this philosophy.
Bigger, as in Allure of the Seas, is more difficult to maneuver, to run into friends you meet while on board, to go back to your stateroom for something that you've forgotten, to see a show or attraction and to get the feeling that you are actually on a cruise ship.
The Good...beautiful ship, amazing Central Park and fun Boardwalk, ample deck chairs, all-you-can-drink packages, fun parades, great shows, nice veranda stateroom, great service in the MDR