Not a fight! Who's more important to the the development of US comics? The Father of the Silver Age or The Father of of the Marvel Age? Lee is certainly the better known of the two and was by far the better promoter of his "brand" but he only had twelve books a month coming out due do to contractual restrictions. Ont he other hand Lee's signature creation the Fantastic Four? Very much derived from the Challengers of the Unknown book Kirby did while at DC and the the whole "Bickering team led by by the brilliant but emotionally distant leader" thing was already being done about a year earlier DC in the Metal Men.