I would love to see Cats! I love the music but have never had a chance to see the show!
I prefer NCL over Royal, but I have to admit, Royal seems to do a better job of picking out shows for their ships. I saw Legally Blonde on the Getaway. It was OK, but no great music like the songs in Phantom or Cats for instance. NCL chose Rock of Ages for Breakaway, but it is really not a "family" show due to language and suggestive content, so maybe not the best choice for a cruise ship. I would have probably preferred Hairspray over either of the NCL shows.
I'm sure there is a price tag for the rights to these shows, so is Royal paying a higher tab for the better shows ( and passing that along in the cruise fare )?