I'm planning to make a baby playmat/ quilt. I'm a fairly novice sewer, I've made a couple of small quilts previously which I'm happy with but I avoided worrying about edges by making them in a 'lap duvet' style. This time I'd like some edging. I'm somewhat imprecise and impatient, definitely not expecting perfection and happy to have a slightly 'homemade' finish. But, obviously I want something that won't fall apart or look incredibly uneven and rubbish.
Which is easier to attach, piping or bias binding (both are availble in the colours etc I want)? I'm happy to handsew or use a machine if that makes a difference. Also open to rounded or square corners depending on whichever is easier.