My favourite ship is Merucry, but there are private reasons for :-)
More beautiful is Millenium. On that ship I made a Transatlatic-Cruise last year staret from FL to Bermuda and than Madeira, Lissboa,Gibraltar, Malaga, Barcelona. It was a great trip, the weather and anything was perfect! So if you like to see Europe I think a Transatlantic-Cruise would be the best!
Before that I had the Panamacanal 2 times (to Santiago and to San Diego), a cruise around Hawaiien Islands and my absolute favorite (the ship, the weather, the ports of call, the passengers, events... everything) was the cruise from Buenos Aires to Rio (for 3 days canival) and back. That was fantastic!!! If you get ever chance - do it!!!
Where are you from?
Greetings from germany