Generally you are required to file in the district in which the debtor has its principal place of business or principle assets (i.e. you can't simply choose where you want to file).
Please note that nothing in this posting or in any other posting constitutes legal advice; this is simply my understanding of the facts and law, which I do not warrant, and I am not suggesting any course of action or inaction to any person. Speak to a lawyer for specific advice. If you have any questions, please refer to a lawyer in your jurisdiction. Thanks!