I will have to agree with Tom that San Diego and Orange County are indeed very nice and much more so then LA.
As to giving recommendations, that is virtually impossible, as there is so much to see in LA. Two things I would, however, always suggest - if you are an ocean liner enthusiast - is to visit the "Queen Mary", which is docked in Long Beach. Also, from Griffith Observatory you have a most spectacular nighttime view of LA.
That being said, I really found both San Diego and San Francisco far more attractive than LA.
And in regards to your original question, I stayed in a Cat. AF minisuite onboard "Norwegian Star" during a one-night pre-inaugural event in 2001. It was a very nice cabin, but I cannot comment on the service as there was none offered on that occasion (no room service etc.).