I prefer to pick out stitches while sitting with the quilt in my lap, watching TV. I work on one side for a while, cutting every few stitches, then go to the other side and see if the thread on that side will pull free. Sometimes if the tension is really bad it can be very easy to unsew. I don't think I would want to work on it standing up, but if that works for you then try it. I'm not sure pant hangers will support the quilt sufficiently when you're handling it, so be sure to put something clean under the area where it might fall.