To me, he was a comedic genius - either as an actor, writer, or director, Harold Ramis movies made me howl - I can't imagine what he's cooking-up with John Belushi now! Bill Murray said: "Harold Ramis and I together did the National Lampoon show off-Broadway, Meatballs, Stripes, Caddyshack, Ghostbusters and Groundhog Day. He earned his keep on this planet. God bless him."
Here's a beautiful scene from "Knocked-Up" with Seth Rogen (creator Judd Apatow said Harold was THE reason he became a comedy director) CAUTION: THE "F-WORD" IS USED IN THIS SCENE.