Depends on what you mean by passion and stability.
I want passion in that I want a partner who has a lot of love for me and concern for our relationship. I want somebody who loves deeply and doesn't mind breaking a few rules. I want somebody who will wake me up at midnight and tell me that we're going on a road trip. Somebody who sees the bright beauty in life. Somebody who doesn't care about money or possessions. Somebody who can sweep me off my feet and carry me across an ocean. Somebody whom I can confide in and share my ideas with. If that's passion, then yes--I thrive on it. I could never be in a relationship where it's just staying at home or working a 9 to 5, getting sick of life and becoming like cardboard.
However, I want stability. Emotional stability. Somebody who will be there for me to come home to. Somebody I know will be faithful to me. Somebody who trusts me, and somebody I can trust. Somebody with a good level of emotional health. No cheating, manipulation, abuse, erratic loyalties, codependency, etc. You get the picture. I'll never stay with someone at my own expense just for the "passion" in the relationship.
In short, I want a unique balance of both.