True or False: The U.S. "Superior" Court is the Nation's most powerful court? (is Superior and Supreme one in the same?)

No, they are not the same.

http://www.answers.com/topic/superior-court

http://www.answers.com/topic/supreme-court-of-the-united-states

There is only one Supreme Court in the US. There are many superior courts.
http://www.google.com/search?q=superior+courts&rlz=1C1GGGE_enUS379US379&oq=superior+courts&aqs=chrome.0.57j0j60l3j0.2917&sugexp=chrome,mod=1&sourceid=chrome&ie=UTF-8

False. The U.S. "Superior" Court is not the nation's most powerful court. The correct term for the highest court in the United States is the Supreme Court. The Superior Court usually refers to a lower-level trial court in some states, but it does not have the same level of authority as the Supreme Court.

To confirm this, you can perform a simple internet search to find reliable sources that explain the hierarchy of the U.S. court system. The information will typically include descriptions and explanations of the powers, roles, and structure of the different courts, including the Supreme Court's position as the highest court in the land.