Hmm my favorite is the bioship from young justice. It had very cool features ranging from shapeshifting, camouflage to some extent technology manipulation because it can interact with technology, it has weaponry that I can shapshift or use but the most interesting thing is that it can potentially incorporate other tech into itself like another weapon it also capable of going into space, water and in the air without system failing them like most common ships do. The ship downside is that it doesn't have faster than light capabilities. The other cool ship I like is moya while this is another bio organic ship it is run by another alien the tit has a symbiotic relationship with most common called pilot. The ship moya although organic has some technology that isn't organic but is part of the ship it does have a type of FTL called starbust but this is not entitelly controlled well you just enter another dimension and pop out the other end somewhere in the universe. It has miniature robotic caretakers known as drd (or diagnostic repair drones) these drd take care of the ship through repairing the ship and maintain the ship condition not only that but they can act as mini bodyguards for the ship to help ward off invaders to the best of their abilities the other part that cool about drd on levathians like moya is that they carry translator microbes so if you speak another language and another alien speaks another language these translator microbes are injected into both aliens so whatever language they speak is understood to both as their native language. Some language are not fully translated as the words might be too complex to understand. I feel like these two are my favorite ships now I do like the tardis ship but I feel like out of all the ships I like DC martian bioship is the best I could of said more about all the ships I spoken about and have not spoken about but I will leave it at that.