A few principles that can help in such cases (major decision, very little direct data):

• Outside view. You're probably more similar to other people than you like to think. What has worked for them?
• Far vs Near mode: beware of generalizations when visualizing distant (more than a few weeks!) results of a choice. Consider what daily activities will be like.
• Avoiding oversimplified modeling: With the exceptions of procreation and suicide, there are almost no life decisions that are permanent and unchangeable.
• Shut up and multiply, even for yourself: Many times it turns out that minor-but-frequent issues dominate your happiness. Weight your pros/cons for future choices based on this, not just on how important something "should" be.