I only plan to stop cruising when I can no longer hack it.
I have sailed on the two largest ships in the world and did not have to wait in a long line to get onboard. The embarkation was as easy as a hot knife cutting butter.
Carnival Liberty New Year's Eve 2007
Liberty of the Seas 5/2008+11/2009
Allure 1/16/ 2011
Independence of the Seas 12/29/2013 Top-notch!