The Fantasy isn't really that old. While she is the fourth oldest ship sailing for Carnival today, she was launched in 1990. Right now, the youngest ship doing four day iteneraries is the Imagination (1995) offering four and five day sailings out of Tampa. As for 3 day iteneraries, only the Fantasy (1990), Facination (1994) and Ecstasy (1991) are the only ships in Carnival's fleet offering 3 day sailings. I would hesitate calling any of these ships "tanks" although they might be showing some wear and tear around the edges. These ships feature almost all the features on brand new ships, except maybe fewer balcony cabins. The Fantasy's blueprints were also used on the Facination, Ecstasy, Elation, Inspiration, Imagination, Sensation, and Paradise. The only difference between these ships is decor. You should have a great time on board any of these ships.