Moses was absolutely terrifying in the early '80s against Chief. That whole Sixer team was the scariest team I have ever seen (since they changed their unis from red I can't take Philly as serious). I started following the C's in '83, but something about that Cheeks-Toney-Moses-Doc team haunts me in my dreams to this day. Especially their deny defense. And Moses peaked that year with 15 rpg. Nasty.
Moses dominated Chief on both ends of the floor until about 1985 or so. It was just painful to watch. Chief outlasted him, but during those intense years of the Boston-Philly rivalry, it was no contest.