There is no "better" option, as it depends on your individual circumstances. If you are the petitioner, you get to decide what you want in the divorce, such as who gets the house or whether you will receive spousal support. However, if you are the respondent, you may have less to lose in the divorce. Ultimately, the decision of who should be the petitioner is up to you and your spouse. You should consult with an attorney to help you understand the implications of being the petitioner.