The Ebon Hawk, the Millenium Falcon of the time, is by far the superior ship out of all of them..especially in comparison to something as weak and pitiful as the Endar Spire, which we only saw as a crippled and falling apart capital ship that really posed no power whatsoever.
'Tis a shame that wasn't even remotely apart of the KotOR series/timeframe.
However, the Starforge was..and i'm confused as to why that isn't a choice.