The crown would go to the Hypirion core, a highly maneuverable core with just about infinite power and a lot of crew in the tin:

And it's combat bersion, sporting 2 super railguns, an amount of missiles that would make Graystillplays, Dangerously Funny, and Let's Game It Out proud! Oh, and it has a lot of mines, too.

If someone can make a ship that makes the power supply of the Hypirion Core want to shove a frisbee down its throat and yeet itself off a cliff, let me know.