The only planet that really showed aliens holding thier own and being a force in the galactic enviroment was Maanan, and even that had a flaw in the fact that on a planet where Selkath areupposed to be a majority there are still many humans. Its supposed to be important in galactic polotics and tourists attractions so why is it that the human non-native, non-human races on the entire planet are one Iridorian,two Rodians, and a twilek. This planet also gives the best example of everybody in the Republic and Sith being human. Out of all the soldiers from both opposing factions none were any alien species. Making it feel not as important to the whole galactic community as it really was.
On second thought there was one twilek Sith that was an extra loading Kolto.