But that's...

everyone would only end up choosing the "strong ships".

Just like a game of some sort... which is why

...B

all us ship girls look different?

Weapons like us could just as well all look the same.

they make it so that someone would pick the weak ships too. We look different in order to maintain some fluctuation.

...One more thing. Do you know why

So why are we all made individual? ...That's because, if we all looked the same