Comedy: Internal Energy or External Motivation

John Belushi was a comedic talent above and beyond the ever constant flow of aspiring young actors. His antics were delivered with masterful ability in both television and film. His contribution to comedy, acting, and singing set the image for future actors to emulate. So, is it safe to say that Chris Farley was merely following the mold set by others or that he added his own specific brand of skill to a familiar venue? Consider the factors that play into developing the unique performer, while simultaneously pointing out the distinctive traits of the personality. Does comedic talent necessitate a lesser or more pronounced counterpart, much like Laurel and Hardy in order to cultivate the creative juices? How much of an effect does audience have on delivery and captivating tension? Are props, musical score, setting, and dialogue vital to the production or simple accessories of the process? Does the climactic spectacle require a "Who's on first?" dialogue as the one coined by Abbott and Costello, or is it merely the chemistry between the characters?