I remember those days. The cast members were all great especially Ackroyd, Belushi, Murray, Ratner and Chase. Chase got all this attention when he left and started making movies.
Chevy was indeed a SNL star and well liked by the public but he was not even close to the level of Ackroyd and Belushi IMO.
I never liked Chase. He seemed to be excessively sure of his good looks as if he was the golden boy and overestimated his talent. I really felt he did not fit in with that crowd. They were really better than he at their craft. He did come off like he felt he was Mr. Hollywood or something. When he left and Murray came on I really was relieved.