In battleships and science fiction novels, starships were often classified according to strength, scale, performance, and other factors. Generally speaking, these levels could be divided into the following categories: 1. Basic ships: These ships are usually the most common type of ships with weaker strength but large numbers. For example, cruisers, destroyer, frigates, etc. 2. Advanced ships: These ships are usually more powerful than the basic ships and have more advanced weapons and electronic equipment, as well as more powerful power systems. For example, aircraft carriers, battleships, cruisers, destroyer, submarines, and so on. 3. Special ships: These ships have unique advantages in certain aspects, such as being able to carry out special missions or have special abilities. For example, space fighter jets, spaceships, interstellar warships, hyperspace aircraft, and so on. 4. Super ships: These ships are usually larger and more powerful than ordinary ships. They have extremely high performance, speed, and attack power. For example, super aircraft carriers, super battleships, super cruisers, super destroyer, and so on. 5. Cosmic ships: These ships are usually giant ships that operate in the universe and have extremely high mobility, attack power, and defense power. For example, spaceships, space battleships, space cruisers, space destructors, space fortresses, etc. It is important to note that these levels are not absolute. Some types of ships may cross multiple levels and some types of ships may be in between multiple levels. At the same time, these rankings might just be the imagination and creation of the author or other creators and did not represent the actual situation.