Response A is better because it accurately references visible details in the image, follows the prompt instructions, and provides clearer, safer, and more complete information for repairing a polyester puffer coat. Response B is also helpful, but it includes a less reliable iron-on patch suggestion for this type of fabric.

Response A works better because it correctly describes what we can see in the picture and follows the given instructions more closely. It also gives clearer, safer, and more thorough advice for fixing a polyester puffer jacket. While Response B is also useful, it suggests using an iron-on patch, which isn't the best choice for this type of fabric.