I'm surprised no one mentioned the kingfisher. Its a ton cheaper than the Charon, has better maneuverability, more firepower, and both their hull strength's are nearly the same.
As far as transports go, I vote for the Large Train. Just the perfect mix of looks, capacity, and survivability.
For fighters, I'm partial to the kingfisher. It's berated by its own infocard, but it's a very well-modeled civilian-class fighter.