Ah, this is an insensitive question, as both options offer similar cooking options. The only difference is that a crockpot offers a ceramic bottom, and uniform heat distribution encompasses the sides and walls, which is not the case with a cooker. As a result, the cooker only heats the bottom, and some dishes might burn due to this. However, when you regulate the warmth, this won't happen. But if you want more security, you might go with a crockpot.