Ok, here are some of the answers to your questions. First the sidious gold chase for the best buy version is identical to that of the regular gold chase. There is no gold chase version for any of the bright chorme series (luke, sidious, and yoda) The darth tyrannus and count dooku sabers are actually different. Small details like the switch and parts of the saber are different colors. If you have anymore questions about the minis feel free to ask as I am addicted to collecting them ;D