Typically you can fly to any planet or moon in the Serpentis system and be attacked within 10 seconds. Though I've never cared about any of the ships. I can't think of any stock ships in the game I think of as being super cool looking or all that great stats wise. Any ship I get is basically deleted and then built as an entirely new ship.Man it just occurred to me if you're really good with space combat you can go to the Serpentis system right at the start of the game and jack a high-end Varuun ship. So much easier than dealing with the Ranger questline.
Dirge III is class A with 33 reactor power, particle guns + missiles.