I disagree with you on this one - these are the first ship names I have liked in a long time.
They should have named Oasis "Quantum" - it is far more fitting for such a revolutionary ship.
I also like "Anthem" - which signifies some type of signature song.
I am also very tired of the "of the Seas" business. I suspect it has a lot to do with trademark, etc, but the problem is that it means we have to use the full name most of the time.