[Astromancer]

When you say the best, what purpose is it supposed to be best for? I remember one science fiction RPG (I've long since forgotten the name and lost the book) were spaceships were defined in five stats, size, speed, defense, attack, and luxury. Each was rated one to five. As were two optional stats Computer/A.I. and Cargo. It was quick easy and fairly detailed. Enough detail for games focused on things like adventure, storytelling, and mysteries, which is how I used that game. In terms of technical detail it was nothing.