Cloning. It is far more interesting because of how it is done. Robots are made electronically or whatever, and so can be made by a lot of people. Cloning however can only be done by specialists, because of the research that goes into it, how people slowly figured out how to start off and improve their methods, and also making it like that real thing - hence the name 'clone'. Not to mention how they came up with the idea anyway.... Have fun with that essay.
