The question was based on tort law and if filing in California was more favorable to a plantiff than filing in Michigan...assuming that i had a choice.
As a plaintiff you would have the choice of where to file it. The choice would be yours. Another issues worth noting is which venue would be more sympathetic to you and whether or not California has personal jurisdiction over the defendant. If your Michigan defendant has had few contacts if any, a court could dismiss the case, then you would have to refile in the proper court.
I highly recommend that you retain counsel to research those issues. If you are proceeding pro se, you need to research personal jurisdiction and venue.
Best of luck.