Of the 32 sketches that appear between both of your lists, I count only 4 in which the SNL host is not one of the players. Which is not to imply that having the host in it is the reason why all of these sketches reach the top 20 (Tom Arnold was not an essential part of the humor in the Clinton at McDonalds nor was Margot Kidder in Fred Garvin: Male Prostitute). But have you considered doing a list of best sketches that are self contained to cast members?
Of the 32 sketches that appear between both of your lists, I count only 4 in which the SNL host is not one of the players. Which is not to imply that having the host in it is the reason why all of these sketches reach the top 20 (Tom Arnold was not an essential part of the humor in the Clinton at McDonalds nor was Margot Kidder in Fred Garvin: Male Prostitute). But have you considered doing a list of best sketches that are self contained to cast members?