I am booked on the Oasis as well ( it will be my second time). I also have been on the the Allure.
I love those ships, and I'm sure that you will also.
Carnival Liberty New Year's Eve 2007
Liberty of the Seas 5/2008+11/2009
Allure 1/16/ 2011
Booked Vision of the Seas . 2/14/2015
Booked Allure of the Seas... 2/21/16 *Last Gang Cruise*