Ocean roses have not been specifically contacted, so I don't want to comment specifically. They should be used for passengers and goods.
Henna disembarked in the 1980s and was originally a passenger and cargo ship. After the original ship owner company was eliminated, it was acquired by HNA and transformed into a cruise ship with 47,000 tons. The service and catering on Henna are more like China, but the entertainment facilities, activities and services are different from those of established international cruise companies.
Costa Cruises is the name of a cruise company. It operated two cruise ships in China in April of 20 15: Victoria and Selena, among which Victoria was launched earlier, but it was just renovated in 20 13, with a passenger capacity of 76,000 tons;
Selena is one of the flagships of Costa Cruises, with a tonnage of 1 14000 tons. It is called the ship of the gods. Costa Cruises is a pure Italian catering and service style, and every ship will have a heavy artistic atmosphere. Paintings, sculptures and other works of art can be seen everywhere, but the disadvantage is that entertainment activities and facilities are not rich enough.
Royal Caribbean International Cruises has Ocean Mariner 20 15 in China, with a tonnage of138,000 tons. There is no strong artistic atmosphere on board, and all kinds of American entertainment activities and facilities are not available on other cruise ships in Japan and South Korea: there are skating performances on the real ice rink, and you can try your own skates on board, climbing wall, golf putter driving range, and the four-story 100-meter-long pedestrian street in the middle of the ship is all over the world.
There is no best, only the best. Based on the above, you can ask more specific questions.