Depending on the age of the child I would caution against asking their opinion about which parent they wanted to live with. This is an esentially no win position for the child because in the process of choosing they are also rejecting one parent over the other. A second consideration in asking children to choose which parent they want to live with is the strength of the "reconciliation fantasy" they are currently experiencing. I have known some children who when given the power choose have manipulated what control they perceive themselves as having in an effort to bring their parents back together. This effort is rarely if ever successful and usually results in the child becoming alienated from one parent or the other. This sounds like a separation fraught with conflict and that is too bad but my advice is to leave the child out of it if at all possible.