I loved the Doghouse on the Allure. But other than that plus different shows I liked them equally well.
I chose the Oasis for this april because I prefer the western itinerary and it coincides with our 15th. anniversary.
You can't go wrong with either ship.
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!