You can say the exact same thing for Chappelle. Skits centered around And1 mixtapes, The Real World, Making the Band, the first black president...
CS gets the nod here only because of ages of the posters, but if you were around and old enough for what these shows were parodying at the time, then time going by will not be a factor in those sketches not still being funny now
CS was a one man show, 95% of the memorable moments are Chappelle characters. ILC had a huge variety of talent, and did what they did for 5 years on network tv. If they had the freedom that CS had on Comedy Central...
And how many people that discovered Paul Mooney from CS know he was the one that created Homey the Clown?