This is a litigation question. In addition, you may want to give more specifics. Are we talking about a Federal Court? A better context of your question will probably get better and more helpful answers.
Depending which court system you are in (federal vs. state) you may not have a choice. Furthermore, even if you do, it is a tactical decision which has to be made based upon the facts of the case, the parties, and numerous other considerations. Setting aside that you do not give enough information to give an educated comment in response to your question, this forum doesn't present the appropriate arena to adquately address all considerations.
I am assuming that you are in Federal Court in the Western District of Washington, where the parties can both consent to having your case heard by a magistrate judge. If the other side doesn't consent, then it probably doesn't matter. It all depends upon your judge and your assigned magistrate. They are both generally high quality in this district.
For business cases, I personally prefer Magistrate/Judge trials as they are faster, and you tend to get an educated determination. If your case is personal/based as much on emotional appeal as evidence, then you may be best off with a jury. Judges don't respond real well to emotional appeal.