People may beleive that capitalism is a better way to run an economy because it creates cooperation. For example when hiring someone you have to cooperate and agree on a price that reasonable for the both of you. If there is a team involved then they have to agree on a reasonable price for their labor. Through all the processes of getting a job done under capitalism it is necessary to cooperate. It also promotes freedom to work any job you want, because under capitalism there are lots of different jobs, and opportunites. And finaly it is very efficent and gets alot done.
Although this is slightly subjective, it would be "William Shakespeare" who is considered the greatest playwright in the English language, due mostly to his incredibly fluid and "natural" style.