I have to say, since I sell custom 3D printed ships for the game I am in a good position to say if people would buy which ships. Its not perfect since the stats of the ship or the cards included are more relevant than the ship itself, but for the sake of argument.
People do not care for prequel ships. There are a few exceptions like the Jedi Interceptor, the ARC-170 and the clone Y-Wing (used as a proxy for the Y-Wing). Its amazing how many obscure Civil War ships are more popular than ships that appear in the movies. The YV 929 is more popular than the Naboo Fighter and nobody cares for Separatist Ships. Even the Knights of the Old Republic ships are more popular than the prequel ships. Its quite baffling.
Like I said, I think it boils down to ship design, not how great the source was. By which I mean you can love a design from crap source material, and hate crap designs from source material you love. A person's fondness for a source can of course effect in them an attachment to a certain design, such as the Ebon Hawk.