CCL (Carnival) P/E Ratio is 22
RCL (Royal Caribbean) P/E is 17
Norweigen P/E of 20 seems to be in line. But I think I would rather put my money on the other 2 lines. Presently own RCL.
O F C'er
Experiences over the years enabled me to have all the answers, but not necessarily corresponding with your questions.