I know there's no comparing oasis class to any other ship no matter the line. We sailed Majesty back in 2000 right after we siled Carnival Fantasy so it was a good way to compare the line since the ship were similar.
I will be happy cruising either the oasis or Freedom class of Royal but really want to see Allure like you said just to see? I'm afraid that the Radiance class may be a little to quiet for me and I think I like the idea of the Promaede .
Heck with ths cold weather I'll cruise anything if I could leave right now.
ALLURE, 2/21/16 *Last Gang Cruise*
Carnival - Fantasy 1998
RCCL - Majesty of the Sea 2000
Carnival - Inspiration 2009
Carnival - Freedom 2011
Carnival - Liberty 2013
Carnival- Breeze 2014
Sweet Escape BVI Charter 2015