Depends on your values.
Huana - Traditionalist, rigid, naturalistic, best de jure claim to the deadfire
Royal Deadfire company - imperialistic, nationalistic, progressive, intrusive
Valian - Mercantile, less aggressively colonial than the royal deadfire company, slower and longer term plan, seems to suffer alot of in-fighitng and individual incompetence
Principi -PIRATES!
Obviously PIRATES! are the best.